The YPG-235 comes with 30 built-in songs plus 70 more on an included CD-ROM and an interactive lesson system, divided into left and right hand parts, for learning them. In addition, you have the ability to connect to a computer via USB, download more songs from the Internet into the internal Flash ROM (PC only), and use all of the Yamaha Education Suite features to help you learn to play them. Yamaha makes it easy to get connected with the new PC button. Now, instead of wading through function menus and fighting through a maze of selections, one button is your expressway to music on the web and your computer. In addition, once connected, you can play your songs into the computer (PC and Mac), edit them if necessary, and e-mail them to your friends and family. And with General MIDI (GM) and XGlite compatibility, song data always plays back with the correct sounds.