It didn't occur to me until just moments ago as I read this very wiki's Tetris page that each and every Tetris piece is comprised of four blocks. Four. Tetra. Tetrominos. That's why the game's called Tetris, not just because four lines is the highest-scoring combo! And I've been playing Tetris ever since I was a kid! My brother and sister and I made up lyrics to Music A! * HEADDESK HEADDESK HEADDESK* —Wild Knight
Depending on the version of Tetris, "Music A" is probably either one of several Russian folk songs, or, in the licensed NES version developed by Nintendo, the Dance of the Sugar Plum Fairy from Tchaikovsky's The Nutcracker. Only Tengen's more common, but unlicensed, NES version had neither, its "Music A" instead being an original and rather uninspired composition by Brad Fuller. (The licensed NES version also, in an excellent choice of victory music, made use of the Bullfighters' March from Guiraud's Carmen Suite no. 1, drawn from Bizet's opera of the same name. Given the limitations of the platform, it's a surprisingly faithful rendition. Judge for yourself here, where it's listed as track 8, "Victory", and compare with the orchestral version here.)
Tetris: The Grand Master 2 PLUS's full title is typically written like this: Tetris: The Absolute - The Grand Master 2 PLUS. At first, having "The Absolute" in between "Tetris" and "The Grand Master" seems a little counterintuitive. But, at the time of this game's release, when TGM 3 wasn't around yet, attaining Grand Master rank in Master and T.A. Death Modes was the highest honor you could get in the TGM series at the time—that is, you were absolutely a Grand Master.