Possible Clues:

• Tasting sour
• That's a biting, detective matter, I see
• Like orange juice, say
• Openings of all concerti ideally delivered in C sharp
• Like fluid in a battery
• Very harsh
• Bitter-tasting
• A number of detectives, I see, are so biting
• Sour-tasting, not alkaline
• A detective force in charge is sharp