Do you like Tetris music of any form/genre or only the original songs? Perhaps you create Tetris-oriented music? Do tell. https://www.youtube.com/playlist?list=PLC5VKDRsdntEAUhSw0X2zVkJ82a4xQt71 Also, shameless plug if you're interested.
It depends what you mean by "Tetris Music", but if you mean OST, my favorite track form a Tetris game to this day is this music from TGM2: Also personal rant: Why on earth is GameBoy theme A so popular over NES theme A? To me NES theme A is way better, but heh, opinions.
I really like the Themes from NES and Game Boy Tetris. Most of them are reused masterpieces: Theme A (GB ): Korobeiniki Theme A (NES): Tchaikosvsky's Dance Of The Sugarplum Fairy Theme C (NES and GB ): Bach's Menuet from the third French Suite I haven't found out where the B ones come from. Also, all of these sound pretty nice when they're played on the guitar.
They seriously couldn't have found (made?) a better song for the stages where the game kicks it up a gear. The music adds just as much pressure as the speed increases do in master 700-900. I remember hearing that the first time I made into the 800's like "THIS SHIT IS TOO FUCKING INTENSE AAAHHHHHH!!!"