MAGIX Music Maker has been around since 1994! It is a commercial digital music editor, and one of Europe's most successful music editing programs.
http://www.magix.com/

Sony Sound Forge (formerly Sonic Foundry Sound Forge) is a digital audio editing suite by Sony Creative Software for professional and semi-professional users.
http://www.sonycreativesoftware.com/soundforgesoftware

Launched in 1998 as a loop-based music sequence Acid Pro by Sonic Foundry was the first-ever automatic audio loop-based music software of its kind. The ACID family of music editing software is owned by Sony since July 2003 and continues to offer composing, recording and mixing audio solutions.
http://www.sonycreativesoftware.com/acidsoftware