part writing methods

repeated roots

DOUBLE THE ROOT! leading tone is never doubled

what do method 1 and method 3 have in common

keep the common tone!!!!!

METHOD 1

keep the common tone between each chord in the same voice. the remaining upper voices move by step in the same direction. OFTEN CONTRARY TO THE BASS!!!

METHOD 2 (no common tone)

All three upper parts move in the same direction, with no leap larger than a 3rd! Motion will go with the bass

METHOD 3

Keep common tone, voice that has the 3rd in the first chord leaps to provide the 3rd in the second chord. remaining voices move by step!!

Root Movement of a 3rd or 6th

Two common tones, both chords will have a doubled root. remaining voices will move by step

Root Movement of a 2nd or a 7th

No common tones between the triad, MOVEMENT MUST BE CONTRARY TO THE BASS!!!