Rim clicks across 20 Appleseed Cast songs: what the detector actually measured

31 July 2026. Every one of the 20 drum tabs came back with zero rim clicks. Rather

than leave that as a bare refusal, this is the measurement behind it, per song, with

1-based bar numbers so any disagreement lands on a specific bar.

The discriminator

A side stick and a quiet snare share a signature: little shell body in 150-450 Hz. The

thing that separates them is whether thin body travels with *quietness*. If body energy

correlates with loudness, the thin hits are simply the soft ones, which makes them ghost

notes. If the two decouple, thin-bodied hits are landing at normal volume, and that is

what a side-stick part looks like.

So the number that matters per song is corr(body, loudness). Low means rim-like.

Three songs are candidates. Seventeen are not.

The gap between 0.248 and 0.371 is the cleanest break in the list, and the three below it

sit far from the rest of the distribution.

None of the three was refused for the ghost reason. Great Lake Derelict and Barrier

Islands were refused by the ornament size ceiling; Poseidon by constraint saturation. So

on those three the ghost confound was never the objection, which is exactly why they are

worth an ear.

02 Great Lake Derelict, 137 BPM, corr +0.167

Refused because the low-body class covered 95% of the snare lane. Median body 0.292.

Bars 32 and 33 are the strongest case on the whole record: body at roughly a third of the

song's median, at a level within 1 dB of an ordinary hit.

08 Poseidon, 137.25 BPM, corr +0.180

Refused because the split saturated the size cap. Median body 0.383.

Bars 44 through 49 form a contiguous run at full level with short sustain, which is the

shape of a section played on the stick rather than scattered soft hits.

07 Barrier Islands (Do We Remain), 148 BPM, corr +0.248

Refused because the low-body class covered 95% of the snare lane. Median body 0.237.

Bars 142 to 152 cluster in the outro, which is where a drummer most often drops to the

rim. Levels here are lower than the other two candidates, so this is the weakest of the

three.

What this changes

The blanket claim was "zero rim clicks on all 20, and that is a measurement". The

measurement is better read as two groups. Seventeen songs show thin body travelling with

quietness, so those hits are ghost notes and the tabs are right to mark them that way.

Three songs show the decoupling a real side-stick part produces, and were refused by size

rules rather than by the ghost test.

Converting any of them stays gated on hearing it, since a detector that fires on its own

negative control has said nothing. The bars above are where to listen: **Great Lake

Derelict 32-33, Poseidon 44-49, Barrier Islands 142-152**.

Source data: rim_evidence.json, generated from the same DrumSep snare lanes the tabs

were built from. Method and refusal rules in

~/.claude/skills/stems-to-guitar-pro-drums/sd_lanes.py.