you can down load a program called Midi Notate Player. This is a program that can convert MIDI files into sheet music. It will also play the melodies back to you. If you go on the internet and type in MIDI and then the song/band name, you will be able to got to a website and download the MIDI file to Midi Notate Player. I have included a link to it here (note: this is only the link used to down load the program, free of charge, to your computer):
http://www.notation.com/MidiNotatePlayer.htm
~Ashton
<Added>P.S. I don't know how much this will help you, but if you need to enter notes, find Midi Notate Composer. This is an advanced version of Midi Notate Player. The only difference with Midi Notate Composer is that you can enter notes in (you have to choose you key too). I have also included a link for you to download Midi Notate Composer:
http://www.notation.com/MidiNotateComposer.htm
Hope this helps!!