If you are trying to improve your voice tone and increase your vocal range, you can benefit from a, learn how to sing tutorial.  These are online downloads that teach you how to sing.  It doesn’t matter if you are a beginner or a professional, you can improve your performances by taking an online course.  You will be instructed to use specific voice exercises to develop the quality of you voice.You can, within the comfort of your own home, gain a huge benefit from the tutorials.  You don’t have to spend a lot of money, and you have the download to go over whenever you feel you need to brush up on your sound.  You can not only listen to lessons you can see then done.