SoundHound includes:
♪ The world's fastest music recognition: name tunes playing from a speaker in as little as four seconds. Now with unlimited usage!
♪ The world's only viable singing and humming recognition
♪ LiveLyrics: see Lyrics in time with the music for music recognition

♪ NEW: Real-time Facebook and Twitter Updates from Artists: tap a band's name to instantly see its latest social news!

And there's more: Listen on startup shortcuts and geotagging options, Facebook and Twitter sharing and optional auto-sharing, previews, buy links, and full length YouTube videos.

Note: Location is used to store where songs were discovered. It can be disabled from the Options menu.

Explanation of requested permissions:
RECORD AUDIO
Used to record audio for both music and voice search.

CHANGE YOUR AUDIO SETTINGS
Used to ensure optimal audio recording settings.

FINE (GPS) LOCATION
COARSE (NETWORK-BASED) LOCATION
Used to enhance search results and remember where a search took place, which is displayed through History. This can be disabled in app settings.

FULL INTERNET ACCESS
Used to communicate with servers for search results and other content.

READ PHONE STATE AND IDENTITY
Used to mute SoundHound audio when receiving phone calls.

MODIFY/DELETE USB STORAGE CONTENTS MODIFY/DELETE SD CARD CONTENTS
Used to cache data.

CONTROL VIBRATOR
Used to notify when search results are ready.

VIEW WI-FI STATE
Used to allow usage through WI-FI.

VIEW NETWORK STATE
Used to detect when internet access is available.