Here are links to resources that will help you learn to sing in tune and read music:
Music literacy tutorials:
http://datadragon.com/education/reading/
http://www.notationmachine.com/how_to_read_sheetmusic/readingmusic.htm
http://www.teoria.com/tutorials/reading/index.htm
CAMPUS VOICE LAB: Voice and ear training software, called Singing Coach, is available on campus in the Vocal Lab, COM 334. You can schedule time in the lab through the Communications building information office, COM 301, 867-6070. This program will help you improve your ability to match pitches with your voice and to move between pitches with greater accuracy.
If you’d like to buy the same thing to use at home, you can order Singing Coach from www.Carryatune.com . (The kids’ version is about $25 and just fine; the adult version costs about $50.).
Unfortunately, they don’t make a version for Macs. But a simple pitch-matching program called Vocal Lab is available for Macs from www.rustykat.com (only $10, but not as many features as Singing Coach.)