All Terrain for KORG M1 is a third-party preset expansion for KORG's M1 software synthesizer — the plugin recreation of the M1 workstation, the instrument whose piano, organ, and bell sounds, and above all its "House Piano" and organ presets, shaped late-1980s and 1990s pop, house, and R&B. The M1's importance in a catalogue is partly historical: it was among the first affordable workstations to put sampled instruments, effects, and a sequencer in one box, and its sounds remain instantly recognizable. Expansions of this kind add new programs and combinations beyond the factory library, typically organised by genre and instrument type, and they rely on the M1's architecture — a PCM sample-based engine with a filter, envelopes, and effects, plus the combination mode that layers and splits programs. M1 presets remain in demand for house, techno, pop, R&B, and hip hop because the original sounds are so strongly associated with those eras, and a well-made expansion extends the palette beyond the handful of famous presets. An installed expansion requires a licensed copy of the KORG M1 software synthesizer — note that the M1 plugin is distributed through KORG Collection. Presets run wherever the host instrument runs, on macOS and Windows, in VST, VST3, AU, AAX, and standalone formats. Confirm the publisher, preset count, and required M1 version on the product page, since third-party libraries for KORG legacy synths are distributed by several small developers. #AllTerrainForKORGM1 #KORGM1 #KORG #KORGCollection #M1 #PresetPack #Presets #Programs #Combis #Workstation #90sSounds #House #Techno #Pop #RandB #HipHop #MusicProduction #VST #VST3 #AU #AAX #Standalone #FLStudio #AbletonLive #LogicPro