http://www.comeandplaypiano.com/learn-to-play-piano-software-and-keyboard/
This is a good electronic MIDI keyboard software for children piano lessons?
7 y / o daughter has expressed a serious interest in learning the piano, I intend to buy software that will teach him to play, and I need a keyboard MIDI PC, but I have no idea where to even begin to buy a MIDI keyboard for lessons.
Do not waste your money on software or keyboard. The computer will not teach or supervise the proper technique. Unless you pay thousands of dollars for a good keyboard, it will have no chance even moderately good piano technique. Poor technique can lead to painful, lifelong injuries. Also the keyboard technique is completely different piano technique. If you're willing to pay for a good keyboard Search for a Korg or Kurzweil. It will start at about $ 3,000.
MIDIKeyz Keyboard and Piano Instructional Software Demo Tutorial – Playing MIDI files