Guido is a framework for modeling musical objects. It's name comes from Guido D'Arezzo, who invented musical writing.
It understand concepts like musical interval, chord, tonality, ryhytm, articulation, etc.
Try
Chord new degree'I' from: MusicalScale natural; duration:1; play
It has two games for playing with chords.
Try open ChordPlayerMorph and open ChordMakerMorph or ChordPalleteMorph and drop chords on the player.
Active essay on music: Scales, Intervals, Chords, Harmony. MIL.ZIP
AbstractSound retuning
Little enhacement of AbstractSound class for retuning sounds (MIDI and named notes) AbstractSound.st
AbstractSound tuning: 415 (DoIt and try a midi file)
Now I'm working on a complete retuning of abstract sound, so it can play in other tuning systems, like pitagoric or natural, instead of temperated.
