Merry Christmas! (and Hanukkah and Kwanzaa and many others respectively)
After adding ~180 songs to Gumi's Youtube list (yes, I tried to count) I got tired and searched for other songs for Big Al, Tonio, and Lily instead. It's confusing which song uses Lily's trial when there is no mention so I will likely run into the same problem with Nekomura Iroha.
HA THERE REALLY IS A SONG THAT BEGINS WITH "X"!