I am looking for a program or web services that can:
- search for a track among online music vendors (iTunes Store, Amazon, Google Play, Beatport, etc.). It would be a meta-search engine combining results from as many online music vendors as possible, just like http://torrentz.eu/ does with torrent search engines.
- display the length of the track
- display the price of the track on each platform where it is available
- display codec information (e.g. FLAC, 320 kbps MP3, 256 kbps AAC, etc)
- allow to preview the track
- allow to search for several track at once
- also look for websites that offer the track for free (since some of them might be legally, freely available)