20/34/26/27
20/19/30
20/22
20/35/19/13/20
20/19/33/3
19/1/20
20/29
5/10/20
are all song titles - gives 8(20's) and 4(19's) - unfortunately leaves 14A which is admittedly unsatisfactory.
The Special Instructions do seem to indicate that 14A should form part of a phrase rather than allude to the other phrases.