Unpacked ASO example
This is one 3.072-second training crop with 11 isolated notes at 16 kHz.
mixture.wav is the input, note-*.wav are its aligned source waveforms, and
notes.json contains pitches and sample-based note boundaries. The sources
sum to the mixture within the dataset floating-point tolerance.
A negative onset means a note was already playing when the crop began. Symbolic offsets come from the score; acoustic offsets include the measured release. All WAV files preserve the original float32 samples.