BB1 for M-VAVE FM-1

BB1 1.5

BB1 1.5 adds a205-phrase ACID bank, song tempos and swing, regrouped drum sections, and MIDI input settings.

• **ACID:**27 banks/205 phrases on Dillo's PATTERN page, alongside ERA and SONG, with charted accents and slides adapted to Dillo's steps.
• Song timing: loading a different song brings its catalogue tempo and swing; changing sections within the same song preserves the performer's tempo. Tainted Love carries72BPM/66%swing.
• Patterns: multi-bar drum sections are regrouped, and song accompaniment data is revised in the editable catalogue.
• MIDI input over USB and TRS: default KIT A channel10, KIT B11, Dillo1. Dillo supports CC7level, CC74cutoff, CC71resonance, CC120sound-off and CC123notes-off. GLOBAL>MIDI configures channels, clock source, tempo follow and Start/Stop. Clock output remainsOFF. The second synth channel is reserved in this release build.
• HOME: pattern names clear the row above them.

This release uses the candidate profile: BB_WITH_TELEGRAM0, BB_FIXA0, BB_AUDIO_PROFILE0. The firmware's sound-library image is unchanged from1.2.

FM-1 acceptance: exact c04 application and unchanged sound-library readback verified; saved user data preserved. Native T1 and T2 each ran65.2audio-seconds and stopped cleanly, with no recorded budget exceed, DMA miss, audio fault or CPU1 failure. T1 maximum5475.3µs against5802.7µs budget; T2 retained that boot-cumulative upper bound and observed no new isolated peak. Physical ACID browsing, all three SELECT focuses and the Square Acid panel walkthrough were not performed remotely; browser/source evidence remains separate. See BB1-1.5-HARDWARE-RECEIPT.json in the source bundle. No preferred4640µs target pass is claimed.

Known issue: the browser can play a song at87BPM while its header/control mirror retains120. The first GLOBAL tempo increment then jumps to121 rather than88. Set the intended tempo explicitly. This functional UI issue remains open; physical FM-1 manifestation has not been tested.

Downgrading to1.2 resets global panel/favourite preferences because1.5 adds MIDI settings to that record. Scenes from1.2 load in1.5. Preserved scene bytes do not establish backward decoding compatibility:1.2 refuses experimental scenes with LEAD enabled. MIDI clock output is a future stage.

Credits

The Acid Tabs phrases are credited to J. McConaghy / Acid-Tabs.com (acid-tabs.com), licensed CC BY-SA 4.0 (licence). They have been renamed, revoiced and retimed for Dillo. The bank also adapts the Acid Voice famous-pattern charts. Credits, adaptations and licence/provenance notices accompany the corresponding source; the owner's Acid Voice licence is reported, with terms to be filed. See BIG-BEAT-LICENSING.md and LICENSE/LICENSES.

Release identities

Firmware source c04aa9ff7b5407558b247c891c0944a0c7179e1d; build instructions and exact external dependency pins are inside the corresponding-source tar. Its firmware/build files are byte-identical to the independently verified source. The tar also includes the pinned build/verifier recipe and source assets.