Shazam - Shazam is a mobile app that recognizes music and TV around you.
SoundHound - SoundHound - the most immersive music search, discovery and play experience on mobile.
Midomi - midomi.com find and discover music and people.
Musixmatch - - World’s Largest Lyrics catalog and official
AudD - Basically, Shazam API. Recognize music in microphone recordings, audio files, and UGC. Identify songs playing on radio stations and audio streams. Or make your own music recognition app. Recognize music from social networks and analyze trends.
WhoSampled - WhoSampled, the service that identifies music samples