Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get WJRKA4YSTS@1 --preset shadow -o mystery-stinger.wav
How it's made
Source
a struck glass-like bell tine played as two notes a minor interval apart; the second note lands on the "wrong" degree and is never answered, so the phrase stays unresolved. A faint breath of air rides on top.
Body
each note is a fundamental plus mildly inharmonic partials (2.76x, 5.4x) with the upper ones dying faster, so the strike is glassy and the ring is nearly pure. A soft detuned sine pair under the second note (fundamental and octave, beating at about 1.5 Hz) adds a slow, uneasy shimmer.
Envelope
6 ms soft strike, exponential ring of about 0.4 s (first note) and about 1.4 s (second note). The air layer is band-passed pink noise whose centre sweeps 2.5 to 6 kHz while it swells over about 0.25 s after the second note and fades by 1.9 s, giving the airy tail.
Variation
`rng` detunes each partial by a fraction of a percent and decorrelates the air noise per channel; the interval choice (minor 2nd, minor 3rd, tritone, minor 6th) sets the mood; presets change pitch, spacing, brightness and the amount of air.