Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get G0W9HZYJC4@1 --preset bright -o marimba-notify.wav
How it's made
Source
a soft yarn mallet striking two successive rosewood marimba bars. The contact is a 3–8 ms low-passed noise thump; a softer mallet is longer and darker, a harder one adds click and upper partials.
Body
a tuned bar rings at its fundamental plus the characteristic tuned overtones (≈ 3.9× and ≈ 9.2×). The upper partials fall away much faster than the fundamental (0.12×, 0.05× of the ring time), so the bright strike settles into a round, almost pure tone. A resonator tube below the bar re-emphasises the fundamental and gives the woody "oo" bloom.
Envelope
1.5 ms soft attack, exponential decay of 0.2–0.9 s per note; the second note starts 0.12–0.35 s later while the first is still ringing, then everything fades out by about 0.9 s.
Variation
`rng` detunes each partial by a fraction of a percent and varies note strength, so repeated renders are not machine-identical.
Parameters
Parameter
Range
Default
Unit
Controls
pitch
330 – 880
523
Hz
Pitch
interval
major-third · fourth · fifth · major-sixth
fifth
—
Interval
spacing
0.12 – 0.35
0.2
s
Spacing
ring
0.2 – 0.9
0.45
s
Ring
mallet
0 – 1
0.35
—
Mallet hardness
body
0 – 1
0.5
—
Resonator body
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.