Ask HN: Fable hacked my piano, can I release the results?

Sources: HN 49577129
Summary: The poster states Fable decoded the MIDI channel PianoDisc embeds in MP3 files, then wrote both an encoder and a decoder for the decoy notes the format uses as obfuscation. The question put to the thread is whether that code can be released.
Comments: HN commenters split over whether the decoy-note scheme counts as an effective technical measure under DMCA section 1201, which is what decides the answer.
Why it matters: Whether a weak obfuscation scheme qualifies as an effective technical measure decides if reverse-engineering results like this can be published at all.