5th 3rd 1st 5th 3rd 1st 3rd 2nd
it's 5 3 1 5 3 1 3 2
d-4, e-2, f-1, g-4, a-2, Bb-1, c-3, d-1
The positions for a one octave F scale on the trombone are 6th, 4th, 2nd, 1st, 6th or slightly flat trigger 1st, 4th, 2nd, 1st. For two octave continue on to 4th, 2nd, 1st, 3rd, 1st, 2nd, 1st
Low D natural (middle of the bass clef) on trombone is 4th, medium is 1st, high is 1, 3 or 4