Mastodon riff master Bill Kelliher is a damn professor when it comes to tone. While chatting with us about Mastodon’s new album, Emperor of Sand, Kelliher went into such extreme detail about finding ...

Mozart, Tchaikovsky, Sinatra and Hendrix – these and many other of the world's most famous musicians have had "perfect" or "absolute" pitch. The ability, defined as recognizing the pitch of a musical ...

Vacuum tubes, which rely on thermionic emissions to control current passing through a vacuum in a sealed (usually glass) container, have been around since 1910. In the first half of the 20th century, ...