Today's Free App of the Day is Piano Master Christmas Special
Originally $1.49

This is a pretty well-reviewed music app. As one reviewer says, it's more like a music playing game than a piano teaching app. It was the Free App of the Day before in December 2012.

From the product page:

Piano Master is a music game, just follow the notes on the screen and you will be able to play many famous songs. This is a special version of "Piano Master", dedicated to Christmas, that includes 28 of the most famous Traditional Christmas Carols.

Song list: We wish you a Merry Christmas Carol of the Bells Ding Dong Merrily on High Jingle Bells Deck the Halls O Christmas Tree Joy to the World Away in a Manger What Child is this? Silent Night In The Bleak Midwinter Gabriels Message The Huron Carol Auld Lang Syne All My Heart This Night Rejoices Angels We Have Heard On High O Come, O Come, Emmanuel Hark! The Herald Angels Sing Good King Wenceslas The First Nowell God rest you merry gentlemen O Come All Ye Faithful We Three Kings of Orient Are Oh, Little Town of Bethlehem Ring the Bells I Saw Three Ships Once in Royal Davids City The Holly and the Ivy

For a better play experience a display size of at least 4 inches is recommended. This program works very well on tablets.

179 of 276 reviews are four stars and above.

These apps are compatible with the original Fire and with my Fire HDXs. To tell if an app works for your Fire HD or other Android device registered to your Amazon account, click on the above link and look on the right side of the web page. Amazon will tell you if it will work with your registered device.

Have fun!

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