Is there any chance to write “C major” instead of “major C”?

Question

Solution 1:

Use this

data Mode  = Major | Minor
data Scale = C Mode | D Mode | E Mode | F Mode | G Mode | A Mode | B Mode

Now you can write (with capital C and capital M)

aScale = C Major

Solution 2a:

This is also possible

data Mode  = Major | Minor
data Key   = C | D | E | F | G | A | B 

data Scale = Scale Key Mode

Now you write

aScale = Scale C Major

Solution 2b:

This is also possible

data Mode  = Major | Minor
data Key   = C | D | E | F | G | A | B 

type Scale = (Key, Mode)

Now you write

aScale = (C, Major)