user: Question: When was the note a vocals and the album North (Original Motion Picture Soundtrack)?
Columns: ['Year', 'Album', 'Artist', 'Song', 'Note']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1994.0, 'North (Original Motion Picture Soundtrack)', 'Marc Shaiman', '"A Very Successful Life"', 'vocals']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Note" = 'vocals' AND "Album" = 'North (Original Motion Picture Soundtrack)';