Mana series and Romancing Saga, I believe.
2. What was the first song you ever heard by 22? (MintJam)
The oldest song of theirs on my iTunes is Rival, so I'm going with that. Sounds about right anyway.
3. What's your favorite lyric by 29?
It's between KOKIA and Lily Allen... Favorite by KOKIA is perhaps the "Mama, pinku no zou-san dayo!" in ピンクの象. Favorite from Lily Allen, in Friday Night, the line that goes something like "Nice dancing, love, but you should've worn a bra."
4. What is your favorite album by 49?
Chroma Chrome or Raining Jane. Only have an album from the latter, so I guess it'd be that, Diamond Lane.
5. How many albums by 13 do you own? (Andreas Vollenweider)
I think 4: White Winds, Book of Roses, Dancing With The Lion, Down to the Moon.
6. What is your favorite song by 50?
Chroma Chrome or Raining Jane. キキミミ and Wyoming Sky, respectively.
7. Is there a song by 4 that makes you sad? (ALI PROJECT)