Aratu music written to play, and to change while it plays

20. Quick reference

▶ Open in Aratu to hear and change the examples

Write Means
meter: 4/4, tempo: 96, key: A minor the frame of the piece
space next beat
cc, cccc, ccc eighths, sixteenths, a triplet in one beat
_ hold
- rest
| - |, | - x8 | a whole bar of rest, eight bars of rest
c.c dotted eighth and sixteenth
upper case accent
c4' staccato
c?, c?30% sometimes (half the time, or how often)
{c2|g1} one or the other, chosen each time round
seed 7, seed random the same improvisation again, or a new one each time
| bar line
c4 e g notes, octave carried over
f#4, eb4, dó4 accidentals, solfège
[d e] notes grouped in one beat (needed for two or more notes)
c4+e4+g4 notes together
| Am | F | C G | chords, shared bars divide equally
d u m strum down, up, muted
p:, mf:, f: dynamic mark on a note
<, > crescendo, diminuendo
cresc to ff over 4 bars a dynamic change for a whole part
rit, accel, a tempo, tempo primo tempo changes
tempo 120 -> 140 over 4 bars a tempo ramp
g4^ fermata
pickup: beat 4 pickup
rubato 10%, swing 60%, humanize feel
pattern name { }, play name, add name named patterns, in turn or on top
|: :|, :| x4, |1 |2 repeat, count, endings
%, %% repeat the bar before, the two before
[e4 d]x4, [e4 d]4x a beat repeated four times
motif riff = …, riff+2, riff+3st a named motif; two degrees up; three semitones
riff.inv, riff.retro, riff.ri inversion, retrograde, retrograde inversion
row serie = 0 11 3 …, | o o o o | from serie.RI3 a twelve-tone row; a rhythm taking a form's notes
list temas { }, temas.2, temas.all, temas.random a melody list; one by number, all, at random
| temas.1 | temas.3 | a melody from the list in each bar
segno:, coda:, fine: markers
D.C., D.S. al fine, D.S. al coda, to coda jumps
section name { }, form: intro verse x2 chorus sections and the form
every 4 bars: play fill a variation inside a loop
play fill once, add crash once a pattern once, then back
at bar 30: a scheduled change
now: a change at the next beat
at bar 30 beat 3: a change on a beat of the bar
from bar 9 to 16: for those bars only; then what held comes back
at bar 9: melody = … the line changes from bar 9
over 6 beats, over 8 eighths lengths in beats, eighths, sixteenths
guitar: out, guitar: in silence a part, bring it back
-> signal flow
part.param = value a parameter, drawn as a knob
part.lowpass.cutoff = 300 Hz -> 4000 Hz over 4 bars a parameter that moves, once
<->, back over 2 beats, loop there and back; another length back; again
2[c d e] three notes in two beats
meter: 7/8 = 2+2+3 an additive meter
s!, (s), g4^3 marcato, ghost note, a fermata three times as long
c5:tr, c5:mord, `d5 c5, `s trill, mordent, grace note, flam
a line that starts with | goes on with the line of music above
| I | vi | V7/V |, Am:arp chords by degree; a rolled chord
pandeiro = pd td pd td Brazilian percussion
reverb.mix = 0.5 (no part) for every part
all: chorus -> delay effects on every part
master.reverb.decay = 3 s the mix: reverb, glue, limiter