In a ruler I have 1cm, 2cm, 3cm, 4cm, etc.
Why isn't there in music: 1st, 2st, 3st, 4st, etc. (where st = semitone)
But instead we have:
Minor second, Major second, Minor third, Major third, Perfect fourth, Perfect fifth, Minor sixth, Major sixth, etc..
Why are they called with such long complicated names? (major,minor,perfect), and why do they add an additional semitone in the name? (example: we say "minor second" but it's just 1-semitone.. so shouldn't it be called a "minor first". or just call it a first. or just a 1st :))