Here are the 3 Mopho Keyboard banks in Tetra format. They load into banks 1, 2, and 3 of the Tetra.
There is no separate "user memory" area on the Tetra, so this will overwrite program banks 1, 2, or 3. You can always reinstall the factory programs at any time by downloading them here:
Important! Backup your programs by performing a SysEx dump before installing these if you have any custom work.