Doesn't the Tetris music run into major copyright issues?
For Game Boy:
- Korobeiniki is in the public domain.
- All of Bach's works are in the public domain.
- The only song that could run into copyright issues right now is Tetris Theme B.
For the NES, according to http://www.vgmpf.com/Wiki/index.php/Tetris_(NES)#Music
, the only songs that aren't in the public domain are composed by Hirokazu Tanaka, so those would only run into the regular number of copyright issues.
Now, Mother 3's music runs into major copyright issues. Sampling pop music, nigh-quoting classical music composers whose works aren't in the public domain...