Unique among keyboards the Yamaha PSR -AD offers a backlit LCD capable of displaying musical notes chord information and various functions a touch-sensitive keyboard that responds like a piano General MIDI GM compatibility for playing songs XGlite technology that offers a huge selection of voices and even greater MIDI song-file compatibility and even a PC Button for easy computer connectivity P The PSR -AD delivers notes of polyphony–that is it can sound up to notes at one time–enough for the most demanding needs If you’re buying a keyboard with piano sound in mind you’ll want Yamaha’s Touch Response feature On an acoustic piano striking a key harder will produce a louder sound striking it softer will produce a softer sound Yamaha’s Touch Response is designed to make the keyboard respond like an acoustic piano P The PSR -AD features a stereo-sampled piano voice and dynamic filtering–technology previously reserved for much more expensive professional keyboards A single dedicated button brings up a great-sounding piano rich and authentic in its sound and exceptionally responsive to your playing and sets up the keyboard to play as a piano in full-keyboard mode Further a wealth of special piano-only Pianist styles–like Piano Ballad or Stride for example–provide professional-sounding piano accompaniment that changes chords automatically as you do while you play a piano melody on top P Portable keyboards are compact and light enough to fit just about anywhere–including next to your computer If you’re planning on connecting your keyboard to your computer you’ll be happy to know that the PSR -AD is GM General MIDI System Level compatible This means the keyboard will accurately reproduce any GM music files that you download into your computer–and almost all music files on the Internet are GM-compatible It also has a large selection of XGlite voices offering even greater compatibility with both third party and Yamaha XG software P 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 All Yamaha keyboards have a special MIDI Musical Instrument Digital Interface port on the back that let you connect your keyboard to a computer your computer requires a MIDI Interface like the Yamaha UX and music software Once connected you can play your songs into the computer edit them if necessary and e-mail them to your friends and family And with General MIDI GM compatibility song data always plays back with the correct sounds P The PSR -AD comes with built-in songs and a physical song book But if you’ve never played before where do you start If learning to play music is important to you the Yamaha Education Suite II a more info