MFAW strucutre and ground bass Flashcards
how long is the ground bass
3 bars
how does Purcell stop the ground bass being monotonous
modulate to related keys
describe the ground bass
it is based on a pattern of four notes that is made up of rising 5ths and falling 6th
how does the ground bass progress
from the tonic (a) to the dominant (E)
how many times is the ground bass heard in succession
12
what is the structure of MFAW
rondo ABA
how long is the a section
bars 1-15
what key is the piece
A minor
what key does the a section start in
a minor
when does it change to e minor
bar 13 ( last ground bass of the a section)
how long is the b- section
bars 16-28
what key does the b section start in
g
when does it modulate to c
mid way through the b section around bar 23
when does the it modulate back to a minor
towards the 2nd half of the a section around bar 25
when does a1 start
bars 29-end
what key is a1 in
a minor like the a section
describe the b section
modulates through related keys and varies the length of the ground bass
describe a1
same as the a section but slightly longer so as to end on the tonic key
describe a 2nd way Purcell avoids predictability and monotony
he sometimes continues the vocal phrase beyond the end of the ground bass phrase so they don’t always end together eg: bar 11-14
