Below is the top 50 free applications in the Music category(data is pulled from iTunes). We also have a list of the best paid music iPhone apps.

• Spotify – Spotify Ltd.
• Pandora Radio – Pandora Media, Inc.
• iHeartRadio – Clear Channel Management Services, LP
• Free Music Download – Downloader and Player – Alfadevs
• Magic Piano – Smule
• Shazam – Shazam Entertainment Ltd.
• MP3 Music Downloader Free – WebTechies
• TuneIn Radio – TuneIn
• SoundCloud – SoundCloud Ltd.
• Rdio – Rdio
• Free Music Download Pro – Free Music Downloader and Player – ASPS Apps
• Sing! Karaoke – Smule
• Music Tube – Music video from Youtube – DYSoftware
• Free Music Download. – Limit Point Software
• Songza – Songza Media, Inc.
• 8tracks radio – 8tracks Inc.
• Tunable – Instrument Tuner – AffinityBlue
• SoundHound – SoundHound, Inc.
• iTube FREE – Playlist Manager for YouTube – Shulamit Markish
• Ringtone Designer – Create Unlimited Ringtones, Text Tones, Email Alerts, and More! – BLACKOUT LABS
• Beethoven’s 9th Symphony for iPhone – Touch Press
• Music Download Sprite – Free Music Downloader & Player – TouchClick Soft
• Bandsintown Concerts – Bandsintown Inc.
• Ringtone Maker – Make free ringtones from your music! – Zentertain Ltd.
• Jango Radio Mobile – Jango
• VEVO – Watch Free HD Music Videos, Live Concerts, Original Shows & Discover New Artists – VEVO
• "Free Music Download" – Downloader and Player. – Sergey Sokolov
• SiriusXM Internet Radio – SIRIUS XM Radio Inc
• Slacker Radio – Slacker, Inc.
• MB: YouTube music video player edition (Download free app & play songs like radio) – MixerBox Inc.
• Amazon Cloud Player – AMZN Mobile LLC
• Download Free Music – Downloader and Streamer – Eliza Li
• CineBeat – Music Video Maker – Smule
• LiveMixtapes – RLShaw
• Spotify for iOS 4 – Spotify Ltd.
• GuitarTuna – Guitar Tuner for standard tuning (EADGBe) – Interactive, uses the built in mic – for Acoustic and Electric guitars – Ovelin
• App for Google Music Free – MinhMobileDev
• Tiny Piano – squarepoet, inc.
• The Voice: On Stage – StarMaker Sing & Share
• edjing – DJ mixer console studio – Play Mix Record & Share your sound! – DJiT
• Piano… – Obie Leff
• Magic Guitar – Smule
• Live Nation – Live Nation Entertainment
• Pro Metronome – Beat with Sound and Light – Xiao Yixiang
• Radio.com – CBS Interactive Music Group
• StarMaker: Karaoke + Auto-Tune – StarMaker Sing & Share
• Piano Free with Songs – Better Day Wireless, Inc.
• FIT Radio – Social Study Media LLC
• K-LOVE – Educational Media Foundation
• Sonos Controller for iPhone – Sonos, Inc.