Steinway recording versus the live v8 chip: tuned strings on SIREN plus the v8 noise guest, the same code the player runs. Spectrograms appear when you first play a note and share one scale: 50–12,000 Hz, 0–6 s, −100 to −25 dBFS, at raw level. Level match sets playback gain: 0% plays raw levels, 100% brings each note's recording peak to −6 dBFS. Both buttons of a note use the same gain.