Scale Remap : newbie question

I want to create custom scale based on standard tuning.
I just confuse with I, II, III symbol means

Is it true if I = C, I# = C#, II = D, II# = D#, and IV = B note ?

So if I want to create pentatonic scale, some I symbol can double note?
like set to I = C, I# = C

IV would be F, VII = B.

It’s roman numerals for musical scale degrees. The # suffix means the degree is raised by a half tone.

As the regular keyboards have 12 keys per octave, but scales usually have 7 notes, some keys should be mapped to the same degrees.

Hope this helps, let us know if you have further questions. :slight_smile:

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Thank you, it help, I have try and works.

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