On the FLkey 37 hardware, the screen may provide visual feedback of a musical note which is different to the note named in FL Studio.
For example, changing the octave range on the FLkey 37 displays the note range of the keys on the screen. When the screen says "C3 - C6", pressing the leftmost key will play a C3 note, however FL Studio will display the note "C5".
Firstly, it's important to know that this is entirely normal and both are representing the same "middle C" note, which is the 60th MIDI note out of 128 available. There is a difference only in the naming in this example, but fundamentally it is the same MIDI note.
This discrepancy is due to there being two standards for the octave numbering in the early days MIDI implementation:
- Novation has always used the most common octave range system, which numbers octaves from "-2" to "8", so the lowest note possible is "C-2" and the highest possible note is "G8".
- Image-Line use a standard where the octave range is "0" to "10", so the first note is "C0" and the last note is "G10".
Rest assured, the FLkey will often adapt to display the FL Studio note standard when adjusting certain parameters. For example, using the Graph Editor feature in Sequencer Mode to change a MIDI note will display middle C as "C5" as it does in FL Studio.