ContextSpecifications.bmb

{Specifies the ambiant scale by the distances in semitones between its notes. This is the
 natural minor scale.}
scale 2 1 2 2 1 2 2

{Specifies the MIDI code of the root note. This is the note corresponding with the degree
 0.}
root 57

{Specifies the tempo in beat per second.}
tempo 120

{Specifies the General MIDI programs of the sounds.}
sounds 1 1

{Specifies the underlying degree monoid. This controls the composition of multi-patterns.}
monoid add

{By default, the ambient scale is the minor natural scale.}
multi-pattern increasing_7 0 1 2 3 4 5 6 7

play increasing_7

{Sets the natural major scale as ambient scale.}
scale 2 2 1 2 2 2 1

play increasing_7

{Sets another root note.}
root 45

play increasing_7

{Sets another tempo}
tempo 240

play increasing_7

{Specifies another General MIDI programs. This specifies three virtual instruments, one for
 each of the three voices of the next multi-pattern.}
sounds 0 1 108

multi-pattern p 0 . . 1 . + . 2 . 3 . + 0 . 2 . .

play p