Hi whiddershins, Thanks for your comment, To answer your questions about additional notation marks, please feel free to check our documentation here http://www

Hi whiddershins, Thanks for your comment, To answer your questions about additional notation marks, please feel free to check our documentation here http://www.dodeka.info/Learn/Presentation/ http://www.dodeka.info/Learn/Presentation/ and http://www.dodeka.info/Learn/Resources/ http://www.dodeka.info/Learn/Resources/. These will show you how we notate rests, staccato, and other notational marks. As for the advantage dodeka brings, it's really about the synergy there is between the keyboard and the sheets. There's only one way to write one piece, which means that players can easily learn how to play a song in every tone. Our tests showed that people usually take between 1 to 3 minutes to read and play an easy piece in all different tones. This is fast right? :) For rhythms - we believe it's easier for one's mind to see the value rather that to compute it. Also, we are not targeting musicians, but rather beginners and people who'd like to learn/play music in an easy way. Finally, I'm not sure that I understood what you meant with the stems and sheet music.