PatchVaultM-SOLO COMPANION APP
Everything you need: the one-time setup on your M-solo, connecting, capturing and recalling your sounds, setlists, Patch Magic, backups — and help when something stays silent.
No drivers, no account, no internet connection. PatchVault works fully offline.
PatchVault can always send sounds to your M-solo. To also hear your panel — so your own sounds can be captured — one setting on the instrument must be right: Generic Control must be OFF. Many units ship with it ON, so do this once before your first capture. It stays set afterwards.
PatchVault watches for this: if it hears no controls after you connect, it tells you on screen — that message almost always means Generic Control is still ON.
USBMidi2-ACX.Once connected, the on-screen panel mirrors your instrument live: move a drawbar on the M-solo and it moves on screen.
Think of it like a radio channel: your M-solo listens on one MIDI channel, and PatchVault must send on the same one. From the factory the M-solo listens on channel 1, and PatchVault's MIDI Ch field is set to 1 to match — our testing on real hardware ran exactly like this.
Rule of thumb: if you never changed the channel on your instrument, never touch this setting. Only players who set their M-solo to a different channel in its own menu need to enter the same number here.
Why “listening” matters: recalling a built-in patch on the M-solo only sends a short “patch number” signal — it does not describe the sound. So PatchVault captures sounds the honest way: it listens while you work the panel in MANUAL mode.
Your preset appears as a tile in the library — type, drawbars, Leslie, everything included. The expression pedal is never stored: its position is your playing, not a setting.
Tap any tile in the library. The complete sound jumps back to your M-solo: instrument type, drawbar setting, Leslie, percussion, vibrato and effects — the panel LEDs on the instrument follow. Change everything on the panel, tap again, and your sound is back, exactly as saved.
The left half of the window is your instrument's panel, mirrored: the six instrument types (B-3, Vx, Farf, Ace, Ens, Syn), the nine drawbars, Leslie OFF/STOP/SLOW/FAST, Vibrato/Chorus, Percussion, Octave, the Synth waveform and the effects. It works both ways — switch a type or the Leslie from the app and the instrument's panel lamp obeys; work the hardware and the screen follows.
Open the Setlists tab to line your presets up in playing order — for a gig, a service, a session. On stage you then move through your sounds one tap at a time, in the order you planned, with nothing to search for and nothing to remember.
Patch Magic invents new sounds for the Ensemble and Synth types: a guarded random combination that stays inside musical limits — no broken or unusable results. Press it, listen, and either keep the discovery as your own preset or roll again. Happy accidents, kept.
PatchVault ships with 60 factory presets, researched from classic registrations for all six instrument types. Use the filter chips (All, B-3, VX, FARF, ACE, ENS, SYN, Favorites, Own, Factory) or the search field to find a sound by name or tag. Factory presets never count against the trial — and your own presets live right next to them.
| Format | Contains | Use it for |
|---|---|---|
.pvpatch | One preset | Sharing a single sound |
.pvlibrary | Your whole library | Backup, moving to a second machine |
Use Export library to save your library, Import to bring presets or a library back in.
Your library file also lives in the app's data folder — exporting a .pvlibrary now and then
is the simplest backup there is.
Almost always Generic Control is still ON. Redo the four steps in section 2 — carefully, including the final SYSTEM/RECORD press that saves.
Check the MIDI Ch field: PatchVault must send on the channel your M-solo listens to (factory: 1 — see section 4). Also check the Output device at the top.
Re-seat the USB cable, switch the instrument off and on, then press Devices to refresh.
Try a different USB port; the instrument usually shows as USBMidi2-ACX.
Make sure you captured in MANUAL mode while working the panel (section 5) — a sound can only be stored as completely as it was heard. The expression pedal is deliberately never part of a preset.
Write to atlassoftwaredevelopmentpr@gmail.com — tell us your Windows version and what the app's status line says, and we'll help.