Dal manuale del NL A1
Program Changes and Bank Select
Program Change messages are transmitted on the Global MIDI chan- nel and are recognized on the Global and/or the Slot MIDI Channels. Bank Select messages (CC00, CC32) are used to select the 8 program banks (CC00, value 0 + CC32 values 0-7) or the 4 performance banks (CC00, value 0 + CC32, value 0-3) when Performance Mode is active. Bank Select messages should be immediately followed by a Program Change message when you wish to select a bank from an external unit.
ma la selezione tra modo Program e Performance non puoi farla con MSB/LSB nè con un altro MIDI CC; è solo manuale.
Ma si legge anche che
The Slots will respond to incoming Program Change messages on their individual Slot MIDI Channels.
Incoming Program Change messages on the Global MIDI Channel will change the performance, if Performance Mode is enabled.
- Incoming Program Change on the Global MIDI Channel will change programs on the focused Slot if Performance Mode is not enabled.
Quindi secondo me conviene lavorare sempre in Performance Mode e giocare sui canali (Global e Slot A-D) per decidere se mandare il Program Change all'intera performance o uno solo dei suoi Slot/Program