Apollo

A combination looper and sequencer for live performances, all in your browser.

Installation

Apollo must be served, rather than just opening the HTML file, due to how Chrome loads worker files. See here.

Simplest way to run locally:

• Open a terminal and navigate to midi-synth.
• sudo python -m SimpleHTTPServer 80
• Visit http://localhost in the web browser of your choice.

txt File Syntax

(For importing and exporting songs)

First section: instruments

• Each line: on-screen name (one word), input, instrument name (from http://gleitz.github.io/midi-js-soundfonts/FluidR3_GM/names.json)
• For microphones and other direct-playback devices, input should be "none"
• Leave a line with three ***s after this section

Second section: scheduling (for each instrument, in the same order as listed in the first section)

• Each line: Number of bars, what to do in those bars
• "what to do":
• R = rest
• 0 = follow/play the input, but don't record
• Positive integer = play that number loop
• Negative integer = record that number loop
• After each instrument, leave a line with three ===s

Third section: there is no third section

• Just add three ---s at the very end (instead of the ===s)
• A blank line following the ---s is optional and also acceptable

Adapted From

• https://github.com/cwilso/midi-synth
• https://github.com/gleitz/midi-js-soundfonts
• https://github.com/danigb/soundfont-player
• https://github.com/cwilso/metronome

References

https://en.wikipedia.org/wiki/General_MIDI#Percussion

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TODO

• Generate .txt file from .mcsz file (and thus PDF, etc.)
• Time signatures other than 4/4
• Tempo changes

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onsite,in progress