Hello,

I am recently started learning music theory, I am currently learning intervals and have
a few questions that I was wondering if someone could clear up for me

- A interval is defined as the distance between two notes right ?, but is

- is this the distance between two notes in a specific
scale for example : the distance between C and E is a Major 3rd in the C major scale
when you ascend upwards

- or the distance between C and E universally when you ascend upwards ?, because if you
take the F major scale for example , the distance between c and E is three notes,
but the interval is not a Major 3rd because C is not the root note, F is.

- Are intervals calculated in the same way for all notes including flats/sharps ?,
if I want to calculate the 3rd for C, I know its E but what if I want to calculate it
for C# ? how many tones/semitones should I add ?

- When writing string parts, it is common to use intervals to thinken the sound
- How is this calculated ? Is it by counting down from the melody note ?, so lets say if
the melody note is F, then count down to the interval of a third ?

- Jake