Here are the topics I have been pondering:
1) Ornamentation in Verdi's opera arias, specifically "Caro Nome" from his Rigoletto.
2) Breathing in singing - The existing section of the Breathing article needs expansion.
3) Body Mapping for the singer - New.
4) Eric Whitacre, composer - His existing article needs to be cleaned up.
Though these subjects are interesting, I will continue to look into additional possibilities.
Have a wonderful weekend!