Tony Iommi was born in 1948 and started enjoying guitar as a young teen. It’s now possible for up-and-coming independent artists to build musical collateral and a following. Most other artists have to do what the folks with the purse …

When you divide a measure of music into four beats and play a note that lasts for two beats, you’ll be able to surmise that the 2 beats equal a half note. In a lot music, the mordent begins on …