NotationMachine
Many people are suprised to find out that sheet music can be found all over the Internet hidden in a type of file called a MIDI file. You've seen them: people use them as background music on web pages. They're everywhere, and thousands of popular hits are available to you right now. ... You can take all of this musical information from within these MIDI files and translate them to sheet music instantly!
http://www.intelliscript.net/notationmachine_demo_setup.exe - 3Mb - Download - Screenshot

Sheet Music Designer
Sheet Music Designer is a utility to print blank music paper on letter size (8. 5" x 11") paper. With this program you can print treble and bass staves, along with guitar tablature. You have the ability to adjust left and right margins, line thickness, and closing brackets. ... Can print several varieties of blank manuscript paper for transcribing music. ... A handy software tool for composers, musicians and music teachers! ... You can also specify line closings and the left and right margins of the output.
http://www.pcshareware.com/programs/smusic23.exe - 764Kb - Download - Screenshot

Music MasterWorks
Music MasterWorks is a MIDI music composing program. Allows you to compose music just by singing into your PC microphone. It will also analyze your singing. You can record, edit, playback and print sheet music as well. Compose in either staff or piano roll notation.
http://www.musicmasterworks.com/MusicM382.exe - 2Mb - Download - Screenshot

MidiNotate Composer
MidiNotate Composer provides an easy way to create or arrange your own music. You can write your own music, or you can start with music downloaded from the internet and then arrange it to suit yourself. No matter where your inspiration comes from, Composer will help you produce great-looking... Prepare lessons for music students, arrange church music for the choir each week, write songs to sing with your family, customize music for your instrument, create sheet music for your unique musical group.
http://www.notation.com/MidiNotateComposer10TrialSmallSetup.exe - 5Mb - Download - Screenshot

tutor
Practice makes perfect: Try. And try again. There is no substitute to hard work. Let tutor revolutionize your instrument practice. Impress your instructor on your next session. Perfect pitch: Play the right note, every time. tutor listens to you, guiding you towards the right note on your... Reading made easy: Learn to read sheet music with tutor. ... Sheet music is displayed next to letter notation in Beginner difficulty. ... As you work your way to higher difficulties, you will have to rely on your sheet reading ability to know what note to play next.
http://foxtrot-xray.com/demo/tutor.msi - 2Mb - Download - Screenshot

Vivaldi Scan
Simply the best Optical Music Recognition. You can cleaning up score, correcting any errors, and adding text and fingering. Your scanned sheet music is now alive, and can be colored, edited, and transposed as you wish and is now compatible with other leading software notation programs.
http://www.vivaldistudio.com/eng/VivaldiScan.asp - 0b - Download

MidiNotate Musician
MidiNotate Musician is an invaluable tool for any musician who reads musical notation or wishes he could. Follow the notes on your screen as you listen to your favorite music, whether a song or a symphony. Musician is an eye-opening study aid, a source of accurate sheet music, an untiring... Produce your own customized sheet music from the many music files available on the internet. ... Download music easily from the internet, and Musician will display the score on the screen as the music plays.
http://www.notation.com/MidiNotateMusician10TrialSmallSetup.exe - 5Mb - Download - Screenshot

Note Attack
Learn to read sheet music with this free educational video game. Use either your computer keyboard or MIDI keyboard / piano as input.
http://www.musicmasterworks.com/NoteAttack136.exe - 646Kb - Download - Screenshot

OrangeCD Suite
OrangeCD Catalog is the comprehensive music database program for cataloging your music in any format: CDs, DVDs, records, MP3 files or tapes. To add a new CD to the database, you just need to insert the CD in your computer, and OrangeCD will download all information from Internet. ... Now you can quickly check if you own a specific album or song, find its exact location on CD shelf, print CD changer index sheet or calculate your total collection value for insurance purposes. ... Filling your music CD database becomes quick and easy.
http://www.firetongue.com/orgcdfull.exe - 2Mb - Download - Screenshot

enable Guitar Tuner
enable Guitar Tuner performs real-time tuning for a range of instruments, as well as presets for each instrument in a variety of styles. You can transpose, use common jazz and orchestra references or even enter your own custom frequencies for unlimited flexibility. ... Use the transposition facilities to aid you in writing music or transcribing pieces you don't have sheet music for. ... Learn to "tune by ear" using the Play Tone feature, which generates the note you are trying to play while you tune to it.
http://www.enableencore.com/encore/GuitarTunerDemo.exe - 4Mb - Download - Screenshot