My level of music theory is sort of OK, but from a guitar perspective, rather than keyboards, so very familiar with modes etc.
Yes, in Scaler you can pick a ‘song’ for a progression, and then overlay that with a ‘performance’ (about 780,000 different basic configurations. That’s good as a base starting point for ideas.
But you can also just pick a Scale, and section B will give the harmonised chords related to that scale. You can then do your own progression - try the different voicings, hit ‘suggest’ for things you might not have thought about. Fiddle with ‘borrowed’ chords, maybe. Or go the the Neo-Riemannian function for creative modulations; sure to be some options there you have probably not tried before.
There plenty of programs now of the “hit a button and get a song” variety, which can be quite good. They are a sort of musical cocaine giving you instant gratification after a quick snort. IMHO Scaler is not one of those, and nor does it aspire to be. It’s more like eating your greens for long term health. The brains behind Scaler, @davide and his team, chose a strap line “enable the Composer within” and that is what it does,
In my view, it’s the best broad music learning tool, from both a practical and theoretical perspective, I’ve ever used.
PS: Even the long term users here find themselves discovering new things tried by other users… there is a lot of stuff which is sort of hidden… ( e.g. @TMacD feeds Scaler output back into Scaler to do weird things)
Essentially, the manual says “Scaler comes with 5 pots of paint ; blue yellow red, green and black. If you dip your paint brush (say) into the green pot and move that over a canvas, you will get a green line.”
It’s up to you whether you end up with some random coloured lines or an artistic masterpiece. The lack of a rigid framework is its key differentiator over seemingly related products.