http://imslp.org/wiki/Category:Beyer,_Ferdinand
http://store.musicbasics.com/beyerferdinand.html
_ Beyer op.101 es.13
http://www.youtube.com/watch?v=ctuEnggMec8
_ The Next Mozart? 6-Year Old Piano Prodigy Wows All
http://www.youtube.com/watch?v=vUx4t4W4eVY
