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hello everyone and welcome to the amax
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golf
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I am jonathan and in this talk I'm going
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to demonstrate ways of producing sheet
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music in Emacs
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using lily pond and maybe also convince
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you to use Emacs for writing your scores
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so I'll start with an overview of the
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syntax for those who are new to using
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text based notation
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as a shallow dive into the deep bond of
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lilies and lily pawns
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and move on to showcase some of its
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functionalities using orb mode
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and lily point mode one disclaimer
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however I am not a lillipon developer
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so what is lillipond lillipond is
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a file format and music engraving system
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for producing high quality sheet music
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it translates texture representations of
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music to graphical objects
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so it's similar to latex in that its
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input format describes the visual
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layouts of the score
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using commands to define musical
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expressions
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commands begin with a backslash for
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example
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the formatter command as shown on the
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left yields its graphical equivalents on
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the right
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the fermata symbol over the load b and
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so on and so forth
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it's also fully extensible like Emacs
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allowing users to extend
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and override lilipon's functionalities
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using the scheme
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scripting language it can be used for
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early in contemporary music
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tablature vocal music lead sheets and so
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on
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and above all it works with Emacs in
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fact
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lily pond ships with imax lisp libraries
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including a major mode for editing lily
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pawn files
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so the input files are similar to source
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files
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they contain expressions formed with
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curly braces
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comments that start with the percent
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sign and the code is indented
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nodes are entered using lowercase
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letters and rests with the letter r
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in this case the lowercase r or r4
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is the equivalence of a crotchet or
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quarter note rest
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durations are entered using numbers and
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dots after the note name
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and if you do not specify 1 the previous
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duration is used
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you can also tie notes together using
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the tilde symbol
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in fact you can input chords lyrics
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embellishments and a lot more
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so I encourage you to read the menu for
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more information
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now let's switch to a terminal window
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so with lillipond installed let's create
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a test file with the extension
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ly and open it in Emacs
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at the top of the file is the version
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statement which tells lillipond which
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version to use when compiling the file
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here I'm using version 2.20.0
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I've added the clef and time signature
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so
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let's add some notes
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okay I'm going to close this now and
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compile the file by running
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lily pawns followed by the file name
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okay so now let's view the outputs
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okay so here's a more complex example
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for randomizing node sequences
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the idea is to create new reading
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materials each time the code blocks are
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evaluated
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so as usual we begin with a header I've
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added the title
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and composer then we add the node
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sequences to use in the composition
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in this case s n is a note name just
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like
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a b c d and so on and stands for snare
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drum
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the percussion instruments
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now here's a function that's going to
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shuffle the notes in the table
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and finally we expand the notes inside
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the lillypawn source block
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so whatever the function returns is
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expanded inside the drums block
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now let's press ctrl c ctrl c to view
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the results
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okay and if I run this again it should
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create a new composition
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great you can also audition a piece
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using the midi command
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which creates a midi file of the score
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note also that the ob library
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sorry the ob lillypoint library comes
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with two modes
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the one I'm using now is called arrange
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mode
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and is useful for assembling complete
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scores
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the basic mode on the other hand allows
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you to mix text and music
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by embedding lily pawn snippets and
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export them using typical org mode
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commands
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now to demonstrate the basic mode in
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action I'm going to export this document
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to a pdf
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file in this case the
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filehead argument is required so you
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have to provide one
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and include the file name
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again you can run the code and view the
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results
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here it is so now let's
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export this to pdf file
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and here it is what it generates
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now I'm going to show you the workflow I
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used to produce music books in Emacs
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combining lily pond and latex for a
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perfect marriage
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I begin by sketching first draft of the
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manuscript using pencil and paper
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then I move to Emacs to input the notes
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in a git repository
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this is a typical source file it begins
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with a stylesheet
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where I set variables and layout
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settings although in general there's no
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need for tweaking the layout
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unless you have specific requirements to
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do so
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the easiest way to compile the file from
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max is by pressing ctrl c
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ctrl l so let's do this now
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and the compilation buffer will tell you
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if there were any errors in the file
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now to automate the process of compiling
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several files and building the pdf
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I use gnu make so all I have to do is
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open the shell
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and run the make command and don't worry
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I'll provide a link to the source code
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on the last slide
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as I moved forward with the project I
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found at least two things missing
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one I had no access to a metronome at
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least not from the editor
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so I built one for casual use and made
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it available in the melpa repository
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I also missed bar numbers in the source
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file this
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is useful when going back and forth
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between input and output files without
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getting lost
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so I wrote a command for toggling bar
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numbers which I hope you can see on the
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left
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also some expressions are difficult or
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slow to write on the keyboard
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accents and tuplets for example so I use
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template expansion extensively for this
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purpose
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mainly yes snippets
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so what do I think well I think
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lillypond can be a sharp paradigm shift
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but people used to gui alternatives but
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the results are impressive
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and you don't have to dive too deeply to
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start using lillypod
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likewise the ability to extend the
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software I think is especially appealing
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for music professionals
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enthusiasts composers and the academic
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community
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for example allowing users to create
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alternative notation systems required in
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non-western music traditions
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and other non-conventional requirements
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also lillypod and Emacs both have
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extensive and well-written manuals
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and active communities of users
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but if you're still not sure where to
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start and when to wedge your feet in the
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deep
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but warm pond of lilies lily pawns and
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lily pond users
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I invite you to contribute to my lilly
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pond projects
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which you can do so from the links on
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the screen
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so thank you all I look forward to your
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comments and I hope you enjoy the rest
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of the conference
