Splice is an online music production community for editing, mixing, tagging, and collaborating on original songs. Its Flash-based audio sequencer lets you throw together beats and melodies even if you've never edited music before, then share the results with other users. Automatic beat matching allows you to layer, say, a house groove onto a hip-hop track in a matter of moments. Mixing very different tempos can yield some wacky results.
An amateur could use Splice, for instance, to compose a soundtrack to a homemade YouTube video. Or an electronic musician on the road could grab some original loops and preview how they'll sync together by logging onto Splice. This song took about 10 minutes to make.
Creative Commons licensing means that everyone's work is fair game for the Splice community to use, as long as you give credit where it's due. So far you can peruse the profiles of about 120 of Splice's more than 5,000 registered users, but you can download from the larger pools of DRM-free tunes at CCMixter or Freesound, and then mash them up in Splice.
Splice displays waveforms to help you line up beats, allowing you to drag and nudge sequences and use keyboard shortcuts, such as the spacebar for playback. It handles basic time-stretching and looping functions, with up to eight channels per song. You can upload MP3, WAV/AIFF, OGG, FLAC, and other file types to your account or download MP3s from Splice; ID3 tags are coming soon. You can even record directly to the site using your computer's built-in microphone.
Personal profiles include a picture of yourself (with Che Guevara as the default) and a description of your musical tastes to encourage mingling with other users. Since MySpace has become a sounding board for musicians of the moment, imagine if it put mixing in all of its users' hands like Splice does.
This beta service is built for Firefox but also works in Internet Explorer and Safari. Any song you save will be available for other users to remix; unfortunately you can't hide your work. For now, Splice is a bit slow and lacks some essential editing functions such as zooming. But music aficionados and would-be producers can have a lot of fun surfing other people's creations and concocting new tunes.
Source:Music Thing (thanks, Miguel)