Related Clues:

• Music genre
• Grammy category
• Copper, e.g.
• Brass or bronze
• Rock variety
• Something forged
• It may be picked up in a bar
• ''Heavy'' music
• Pipe material
• Mercury, for one
• Palladium, for one
• Ozzy Osbourne's music, informally
• Tungsten, e.g.
• Mercury, but not Mars
• Vanadium, for one