Related Clues:

• Coloratura's vocal effect
• Vibration
• Microseism
• Pickup in music, sometimes
• Quake aftermath
• 2 or 3 on the Richter scale, maybe
• Bird's warble
• One begins "Rhapsody in Blue"
• Less shake than a quake
• Quick quake
• Vibrato
• Small earthquake
• Earthquake aftershock
• A slight shake
• Shiver in the earth