Synth can stretch the scale while keeping interval-relation
This synth can stretch or shrink the scale while keeping the equal-frequency-interval relation. For example,
C2-C3-G3-C4-E4 (1:2:3:4:5) at x = 6/6 (basis), becomes
F1-C3-A3-Eb4-G4 (1:3:5:7:9) at x = 8/6,
C1-C3-Bb3-E4-Ab4 (1:4:7:10:13) at x = 9/6, or
G2-C3-E3-G3-Bb3 (3:4:5:6:7) at x = 3/6.
The scale can be changed by Modulation Wheel or knob, so you can do that seamlessly.