Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get ED7MP8H6H5@1 --preset soft -o short-drum-fill.wav
How it's made
Source
a drummer's stick on tom heads, then a stick on a crash cymbal. Each tom hit is a 2–4 ms filtered noise tick (stick on the head) driving a membrane.
Body
the head rings as a pitched sine whose frequency drops about a fifth in the first 60 ms (tension relaxing after the strike), plus a damped second mode near 1.6x and a shell resonance; deeper toms ring longer. The crash is a dense, inharmonic metal-plate mode set plus high-passed noise shimmer, bright at first and darkening.
Envelope
tom bodies decay 0.15–0.35 s; the crash blooms in 5 ms and decays over ~0.9 s with a darkening low-pass. The hits start slowly and accelerate (each gap shorter than the last), pitch stepping down from high to low tom, each a little louder.
Variation
`rng` jitters timing, strength and tuning per hit, so every seed is a slightly different fill.
Parameters
Parameter
Range
Default
Unit
Controls
hits
4 – 8
6
—
Tom hits
pitch
90 – 260
150
Hz
Top tom pitch
accel
0 – 1
0.5
—
Acceleration
crash
0 – 1
0.7
—
Crash level
tightness
0 – 1
0.5
—
Tightness
stick
0 – 1
0.5
—
Stick attack
drop
0 – 1
0.5
—
Pitch drop
shimmer
0 – 1
0.5
—
Cymbal brightness
seed
int
1
—
Variation, reproducible
The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.