Table: music_charts_2
Columns: romaji_title
japanese_title
release_date
reference
oricon

Question: How many oricon's have a romaji title of rakuen -memorial tracks- (maxi-single)?
SQL: SELECT COUNT("oricon") FROM music_charts_2 WHERE "romaji_title" = 'rakuen -memorial tracks- (maxi-single)'

Question: What reference is used with the title アイシテル?
SQL: SELECT "reference" FROM music_charts_2 WHERE "japanese_title" = 'アイシテル'

Question: What is the reference for the romani title da.i.su.ki?
SQL: SELECT "reference" FROM music_charts_2 WHERE "romaji_title" = 'da.i.su.ki'

Question: What title to the japanese give the romani title ashita wa ashita no kaze ga fuku?
SQL: SELECT "japanese_title" FROM music_charts_2 WHERE "romaji_title" = 'ashita wa ashita no kaze ga fuku'