The seven components the Eno machines open up into

[tap]

What this changes

Seven new objects that are tap.airport~ and tap.garden~ taken apart — tap.reel~, tap.chime~, tap.chime.voices~, tap.bloom, tap.scale, tap.gardener, tap.period.

The monoliths stay exactly as they are. This is additive: the same kernel classes, reached two ways.

Why

Sum several tap.reel~ at awkward lengths and you have tap.airport~ with every loop reachable — an insert on one phrase, a varispeed on one reel, more than eight loops, and tape bought per reel rather than eight worst-case reels whether you use them or not. Chain tap.gardener → tap.scale → tap.bloom → tap.chime~ and you have tap.garden~ with the lid off.

tap.bloom is the one with reach past the family: it recirculates notes and knows nothing about chimes, so it will drive makenote, poly~, a sampler or MIDI out just as happily.

Verification

76 ctest cases green, clang-format and clang-tidy clean across all twelve new translation units. Wrapper tests cover defaults and the clamping each attribute owes its kernel. Rebuilt clean against the merged kernel pin.

DSP correctness is gated in the kernel repo, as usual — the identity claims these objects rest on are pinned there bitwise (airport_test.cpp "standalone lanes summed are the bank, bitwise"; garden_test.cpp "the bed is exactly its components wired together, bitwise", and "the per-voice taps summed through their seats are the stereo rack").

Not done, and worth stating plainly: none of this has been opened in Max. Everything was built and tested on Linux against the mock kernel. The help patchers and the runtime-test patcher were generated headless — structurally validated (no dangling patch cords, no out-of-range inlet or outlet indices, keys matching an existing patcher) but never loaded. Seven help patchers and one maxtest patcher need an on-Mac pass, and the universal-binary check is CI's first real gate.

Notes for the reviewer

• Submodule pin moved. submodules/taptools → d4cf28a, on main. The Eno family, and the components it is made of TapTools#32 merged by rebase, so the tree this was originally pinned at now lives on main under a new SHA; the tree hashes were compared and are identical, and the pin has been repointed so it stays reachable once the topic branch is deleted.
• Max/Pd package. Reference page and help patcher ship for every new object. Universal-binary status is unverified here — CI is the first machine that can check it.
• tap.chime~ is the whole sixteen-voice rack, not a mono voice for poly~. Two reasons, and it looks like over-engineering until you have both: poly~ steals round-robin, which loses the quietest-first steal-by-re-aim that makes a steal glide instead of click; and poly~ does not exist off Max, while the kernel is meant to run anywhere.
• tap.chime.voices~ is sixteen discrete outlets rather than one mc outlet. Not a preference — min-api's mc support is inlet-side only. It sets Z_MC_INLETS and provides no multichanneloutputs, which is the method Max requires before an external may declare a variable-channel mc outlet. If a later Min gains it, that object is where to adopt it. It is a separate object rather than a mode because outlet count is fixed when a Min object is constructed.
• tap.bloom and tap.gardener run on Max's scheduler, not the audio clock. Returns land within an @interval tick (1 ms by default) rather than on the exact sample; inside tap.garden~ the same ring is sample-accurate. Inaudible at loop lengths measured in seconds, but real — and it is why there is deliberately no in-Max null test for the garden. Asserting a null that cannot hold would be worse than not asserting one. The airport's null test does exist (runtime-tests/patchers/tap.reel~-is-airport.maxtest.maxpat) because both sides of that one are on the audio clock.
• Two collisions the compiler caught, recorded so the next object avoids them: a message named samples shadows Min's templated samples return type (the samples<N> alias), and a class named scale collides with Min's own scale() utility badly enough to make the class template invalid.