Assuming that no chord inversions are in use:
Am I right in believing that in a major chord, there are always 5 semitones between the 1st and 3rd and 4 semitones between the 3rd and 5th?
Am I right in believing that in a minor chord, there are always 4 semitones between the 1st and 3rd and 5 semitones between the 3rd and 5th?
Am I right in believing that in a diminished chord, there are always 4 semitones between the 1st and 3rd and 4 semitones between the 3rd and 5th?
Am I right in believing that in an augmented chord, there are always 5 semitones between the 1st and 3rd and 5 semitones between the 3rd and 5th?
Am I right in believing that in regular seventh chord, e.g. G7 or Am7, the 7th is always two semitones lower than the next tonic? Am I right in believing that in a major7 chord, the 7th is always 1 semitone lower than the next tonic? (7 and major7 chords have always confused me; when I saw them in chord charts, I was never 100% sure if I was supposed to play a 7th one or two semitones below the next tonic.)
Am I correct in believing that something like Gminmaj7 means a Gminor chord (G Bb D) with a major 7 (F#) added and Gmajmin7 means a Gmajor chord (G B D) with a 7 (F) added?