I think i might have the signature for the second part.
Id say its 15/16
Correct. The count is in 15 but its up to you which note gets the count. 15/8 would work as well...depending on how you chart it out.
1-e-&-a-2-e-&-a-3-e-&-a-4-e-&
1-e-&-a-2-e-&-a-3-e-&-a-4-e-&
1-e-&-a-2-e-&-a-3-e-&-a-4-e-&
1-e-&-a-2-e-&-a-3-e-&-a-4-e-&