Control-C else, typically returning control to the user. Ctrl-C was one of a handful of keyboard sequences chosen by the program designers at Xerox PARC to control text editing, with Ctrl-Z (Undo), Ctrl-X (Cut), Ctrl-V (Paste), and Ctrl-P (Print). The first four letters are all located together at the left end of the bottom row of the standard QWERTY keyboard, and P towards the upper right. The equivalent key combination on Macintosh computers is Command-C. Control-C as an abort command was popularized by TOPS-20 and TOPS-10 and adopted by other systems including Unix. It was also adopted by Digital Equipment operating
Fantasy and Fugue on the Theme B-A-C-H Fantasy and Fugue on the Theme B-A-C-H Fantasie und Fuge über das Thema B-A-C-H (also in the first version known as "Präludium und Fuge über das Motiv B-A-C-H", title in English: "Fantasy and Fugue on the Theme B-A-C-H") (S.260i/ii [1st/2nd version], S.529i/ii [piano arrangement of 1st/2nd version]) is an organ fantasy on the BACH motif composed by Franz Liszt in 1855, later revised in 1870. Both versions were transcribed for solo piano by the composer. The piece was dedicated to Alexander Winterberger (who also played it on the premiere, 13 May 1856) and published by Breitkopf & Härtel in 1856.