MIDI Forum

No; Bx cc vv is the standard controller change message (set controller cc on channel x to value vv).

Here, "=" does not really mean "equals". NRPNs (and RPNs) use an additional indirection to allow more control numbers. You use controls 98 and 99 ...

… but very few devices support it. I know only of software synthesizers.

It resets all parameters, so it should come before any other message sent to the device. It does not really matter whether it comes before or after so...

Can you attach a .zip with both files?

You need an editor that can apply transpose only to selected notes. (I guess automatic selection by instrument is not possible, and you have to select...

Do you have multiple instruments in one channel, or multiple channels in one track? In the latter case, many sequencers should be able to split the ch...

That depends on what parameter has been used to change the pitch. GS has the NRPN "Drum Instrument Pitch Coarse" (18h rrh, where rr = note number),...

The file MARIE.MID appears to be encrypted.

buf_len must be a multiple of four.

Please show your source code.

Are you sending all 32 bytes, or only as many as are actually used? It's possible that the Windows driver ignore the entire USB packet when it sees an...

It might be possible with a tool like midish. If this is not flexible enough, you need to do actual programming.

That MIDI Line Amplifier is quite expensive. Any MIDI Thru box (with its own power supply) will work. As far as I can see from the TG100's service ...

Only the Raspberry Pi Zero (W) has an USB OTG port that can be configured as a USB device. All other Raspberry Pi models work only as a USB host, i.e....