GoatTracker - This is a crossplatform C64 music editor.
Tune Me - Tune Me is an amazing mobile app that helps you to record music with more than five hundred beats and rhythms.
OnlineSequencer.net - OnlineSequencer.net is an online music sequencer that allows users to create beats and music tracks.
Adobe Premiere Pro - Edit video faster than ever before with the powerful, more connected Adobe Premiere® Pro CC.
Jummbox - A modified Beepbox that have more stuff then Beepbox. It can be used just like Beepbox. The features of Jummbox is the same of Beepbox's features, but Jummbox have more stuff to offer.
Audio Trimmer - The simplest way to trim your audio files