Possible Clues:

• Ridged material
• Charlotte Gainsbourg's father
• Material with a distinctive diagonal weave
• Frenchman's material
• That's the stuff to get an ant to have stripes
• Material one's taken from Rachmaninov, ultimately
• Material increase, say
• Worsted by sudden escalation in sound
• The sort of material that could give an ant stripes
• The material the ant would need to have stripes