i haven't posted anytihng in a while.... so just to keep this forum alive, here's an A7 lick... lots of people do it... it involves mixing A7 and its tritone sub Eb7...
e 6 9
b 8 5 8
g 6 6 9
d 7p6 5 5 8
a 7 5 6
e
... i wrote it here as straight 8ths...and worked it out so that it lasts exactly 2 bars... but it's always a good idea to come up with variations (rhythmic and melodic) .. try adding a few notes in the beginning or at the end...
i ll post more licks eventually...