4. FrE.C free chord selection and playback
By default, a chord's root note will always conform to the key/scale you chose for your song upon playback (but you may still program a root note that does not fit the scale!). For example, with the default C major scale, possible chord root notes are always the white keys of an imaginary piano (e.g. C, D, E, F, G, A, B) but not the black keys.
Changing the root note of a chord by editing a step on the chord track, will normally always sound/play the closest "legal" note of your chosen key/scale/mode. So if you would, for example, choose a root note of C sharp for a song that is in the key of C major, your Woovebox will play a chord with a C root note (closest "legal" note for that scale), and not a C sharp (which is an "illegal" note for that scale).
Setting FrE.C to the 'yes' option, allows for turning this behavior off, and allow you to freely play back (not just program) chords with root notes that are out-of-scale.
You may also be interested in...
- SysEx Base example (under iOS)Your device will appear in the list and can now be selected to connect to (the Woovebox will report "BLE Conn"). 
- Vocoder (under Sampler & vocoder)Sample editing functionality is identical to regular sampler mode, and you may seamlessly switch between the sampler and vocoder mode. 
- 2. root song scale root note (under Glob (song globals) page)
- Program a bassline (under Quick start tutorial and video)You may also notice the chord track faintly playing in the background every time you hit a bass note on the 1-16 keys. 
- i-bVII-bVI-V ("Andalusian Cadence") (under Popular chords)With your Woovebox' song key and scale in C major (which is the default) and the chord track's upper 8 keys in diatonic mode ("diat", also default).