For task 1 we had to choose a point in the piece to alter the chords to create a 2 5 1 chord progression.

Based off the fact that this song is in D major, I found a D major chord toward the end of the song, chord 2 being Em, chord 5 being A that leads back to the tonic of D. With chords 2 and 5 I fit these two into one bar, by using minims.

For task two, we were set to vamp up the chord of Bbm with variations without using Bb as the root note of the chords. For this, I used a variation of 7ths, 9ths and chord inversions to give harmony interest without deterring from the main chord / key.

b3 5 b7 9 

b7 9 b3 5 

Bb 

Cm 

2 b3  5  7  

b9 b3 5 7 

For task three, I altered the chords, added extentions and changed the voicing to that the chords flowed easier into one another.

I added a 7th to the first chord of Dm for it to become Dm7, left the second chord of Eb over F as I thought it worked well, I also swapped the C in the chord of F for an octave lower for better voicing. the chord proceeding this I added a Ab which has not been heard yet in the chord progression. this transformed the basic Bb chord to Bb7.