jdg78 The samples are organized according to the following logic:
PU (pedal up) and PD (pedal down).
Thirds (C, D#, F#, A) - each sample covering 3 semitones. Key=Number indicates the highest note played by that sample whereas lokey=Number the lowest note.
Velocity value (increments of 5 from 0 to 80, then in 10, plus one layer at 127)
The number after the = indicates the key according to the MIDI standards.
Therefore, in your example, the region sample=PU-C1-5.wav key=24 would correspond to the lowest C, Pedal Up sample, velocity layer 5 (the lowest one) and key 24.
For example, <region> sample=PD-D#5-100.wav key=75 lokey=73 lovel=91 hivel=100
Sustain Pedal Down sample
D#5 - D# in the C5 octave
Velocity value 100
Higher MIDI key 75 - lower MIDI key covered 73
Velocity layers between 91 and 100
Note that the Pedal Up and Pedal Down regions are divided in two groups, Soft Pedal Up and Soft Pedal Down.
Hence, you have 4 possible combinations:
Sustain Pedal Up - Soft Pedal Up
Sustain Pedal Up - Soft Pedal Down (with the cutoff and volume options)
Sustain Pedal Down - Soft pedal Up
Sustain Pedal Down - Soft pedal Down (with the cutoff and volume options)
You can decide if you want to change the Soft Pedal for each octave and also for the Damper Pedal Up and Down samples independently.
Of course, it'll take a bit of experimentation to find what you like best. I'm interested to see what values you guys agree (or more likely disagree) upon.
More information on the SFZ format can be found at SFZ format
More information on the MIDI note numbers can be found at MIDI Note numbers
