Yes, exactly - minor/major and modes in 12TET (as well as pentatonic but that's just major/minor with fewer notes).

What would be interesting with this synth (something other synths, like my Korg Monologue, can do) is being able to tune to different temperaments, i.e. not 12 TET - for this synth especially, since 12 TET was rarely used in the medieval period in favour of pythagorean or meantone tuning.