Ecoute - Ecoute is an alternative music player, with a clean and elegant interface. By focusing on artworks instead of titles, the app tends to simplify the way you are browsing your library on iPhone and iPod Touch. It also handles simple gestures like swipes and long press in order to interact with your library way faster
Groove: Smart Music Player - Groove is a music player which helps you rediscover your music in new, interesting ways. It studies your listening habits and creates a wide variety of instant mixes like your own personal DJ. You will never have to manually create a playlist again.
With Groove, listening in the car is easier too
musiXmatch for iPhone - musiXmatch lets you find and match lyrics to your favorite music tracks for free. With more than 6 million officially licensed lyrics localized in several languages, musiXmatch allows users to access the largest lyrics database in the world.
The app features a fully integrated music player, song tracker, and powerful lyrics search engine
Rhapsody (iPhone/iPad) - Rhapsody is a music service that allows you to access a catalog containing millions of full-length songs from anywhere on your iPhone, iPad or iPod touch.
No matter where you are, you can instantly find old favorites or the newest releases, create the perfect playlist, or just relax and listen to commercial-free Rhapsody Radio
Infuse - Infuse is a stylish media player that supports the most popular video formats. With it, you can play MKV, MP4, AVI, WMV, M4V, MOV, FLV, OGM, OGV, ASF, 3GP, DVR-MS, WebM and WTV files in full HD and with Dolby Digital Plus surround sound without any conversion required. Also, you can stream movies via AirPlay and watch them directly on your Apple TV
Amazon Cloud Player - allows you to access your Amazon Cloud Drive music collection from your iOS device. You can download or stream your library from the cloud, or play the music you already have on your phone.
To make your music collection accessible, visit Amazon Cloud Player on your PC or Mac and upload your music collection from iTunes or your other folders
TuneShell - Pro Music is a powerful music player and downloader for iPhone. The app supports MP3, AAC, WMA, FLAC, Musepack, WavPack, Speex, Ogg Vorbis, Monkey's Audio, Apple Lossless and various other audio formats (.mp3 .m4a .wma .ape .flac .m4b .mp4 .wav .oga .ogg .aifc .aiff .mpc .spx .caf .aac .wv .3gp .3g2 .it .xm .s3m .mod .mid)