ESTAMPIE by Drew Robinson: the mediæval dance sounds, the look and the build (GPL-3.0): source, problems, user guide (adapted from GHOULBOX's).
On GHOULBOX by Jason Persinger: source, problems, user guide.
On Felucca by Leo Kuroshita (@kurogedelic), Hügelton Instruments, with its PHASE engine and drum voices, the Hügelton Sample Pack (CC0 1.0) and Fukiai icons (MIT).
Fonts: Alegreya Sans and Cinzel on the screen, Inter Tight on its keycaps, UnifrakturMaguntia in the name, IM Fell English and Alegreya on these pages (all SIL OFL 1.1). Samples: Versilian Studios VSCO-2 Community Edition and VCSL (CC0 1.0).
FM6 engine: msfa from Dexed (Google Inc., Pascal Gauthier, Apache-2.0). The package also holds three JieLi AC79 SDK files, uboot.boot, cfg_tool.bin and eq_cfg_hw.bin (JieLi Technology, Apache-2.0). Licences: GPL-3.0, Apache-2.0, all.
Return to official V15 installs M-VAVE's official FM-1 V15 firmware, unmodified (m-vave/fm1_open, Apache-2.0).
M-VAVE and FM-1 are trademarks of their respective owners.
ESTAMPIE · GHOULBOX · Felucca