Playdar

If you're looking for a music content resolver service, look no further than Playdar. With Playdar installed on all of your computers, you'll have access to all of the songs you would otherwise have to search for manually through your hard disks, computers, online services, and more. Playdar offers a consistent API for accessing any song ever recorded, and it's designed specifically to solve the problem of finding and listening to any track you want to hear right now.

Playdar searches your local disk (including iTunes library and MP3 folders), your home or office network, and other sources to find the music you're looking for. You can also write plugins for Playdar to enable it to search additional sources. And the best part? Playdar is incredibly fast, so you can start playing your music in less than a second.

Playdar is a "Content Resolver" that takes metadata (artist, album, track names) and resolves them to a location of a matching music file. It runs a lightweight web server on your machine, which is how you interact with it and how other desktop apps and web apps interact with it as well.

One of the great things about Playdar is that it has an HTTP API that returns JSON and supports JSONP. This means that authorized websites can use Javascript to talk to the Playdar server on your machine, enabling a lot of interesting web-app mashups. For example, websites can automatically put play buttons next to songs they reference, streaming services and music blogs can save bandwidth by playing you your own copy of a song instead of streaming it from a central server, and you can even build an iTunes-Genius-like web app using Playdar and the Last.fm API.

Overall, Playdar is a powerful and versatile music content resolver service that is easy to use and incredibly fast. It's perfect for anyone who wants to access all of their music in one place and take advantage of local content whenever possible.