Related Clues:

• Music genre
• Grammy category
• Copper, e.g.
• It's just a racket to some
• Brass or bronze
• Led Zeppelin's genre
• Rock variety
• Smith's medium
• Something forged
• It may be picked up in a bar
• Lead?
• ''Heavy'' music
• Pipe material
• Mercury, for one
• Palladium, for one