I am sure there is at least one time you wish to make and record your own music. However, you are reluctant to come to the studio for the reason of inconvenience. Moreover, it will take you and people who help recording a lot of time and effort in order to make a rather perfect song.
Garageband can help solve this problem. With a Mac, an electric instrument (piano or guitar) together with a garageband software, the whole music world is in your hand.