Pocket Shaker

Pocket Shaker is another fine app which can turn your iPhone into a cool percussion instrument. In fact it can turn it into any such instrument like Conga, Rattle, Shaker, Tambourine, Cowbell, Bass Drum and many more. Just hold the iPhone with the power button facing upwards and then shake it to listen to the instruments. As you keep shaking, it keeps changing to the random percussion instruments. It's free to download and use easy from ipod to mac. You can try in the internet.

AOL Radio

AOL radio streams music to your iPhone from almost 150 CBS radio stations located all around the U.S. Most of us have been listening to AOL radio for years and hence having it on the iPhone wouldn't be disliked by many. You can select from about 25 genres of music. Just choose the category you like and it will play music accordingly. This app is available for free for your iPhone.

Pandora

The Pandora iPod app is the iPod version of the free personalized radio which is completely integrated with your web based Pandora account. It is easy to use and offers all the Pandora features. You can create a station from the current song or artist, tap the album art to get more information, email the station to a friend, bookmark songs and artists, buy tracks from iTunes and get a nice view in the landscape mode by rotating your iPod. If you want to use this with your friend sharing music, you may use this ipod to ipod transfer help you. It can work fast and safe.

Midomi

Midomi helps you identify songs, but in addition to holding your iPhone up to the speakers, you can also sing, recite lyrics or even hum a melody. This was particularly helpful when a friend asked me to identify a Fratellis song by its musical hook. Results include artist and album info and buy links.

NPR Music

NPR Music is a must-have app for any fan of live music. In addition to offering artist interviews, album pre-release streams and reviews, NRP Music has a very deep library of full live show streams from a wide variety of artists, all for free!

Amazing Piano Free

Amazing Piano free aims teaching piano to users while they enjoy the cool features of this virtual piano. It features a keyboard with the piano on top and while the notes are played you can tap the letters to match with the notes played on the screen. You can record and playback songs, experience the 16-bit high quality sounds and learn with 3 levels of music speed. And as the name suggests, the app is free to download and use.

Whether you've got a iPod, iPod touch, iPod shuffle, iPod nano etc. If you want to transfer music from ipod touch to mac computer, this link article is a nice tutorial.