Sweet-Hot Fruit and Vegetable Dice in Tart Dressing

Refreshing and fat-free, this pastel relish is at once hot and sour, sweet and salty, acid and aromatic. Crisp fruit and vegetable bits in a brisk seasoned vinegar (a kind of South Seas salsa) make a fine foil for curry, barbecued meat, spicy tofu, or fried fish. Charentais, Galia, or another orange-fleshed, smooth-skinned melon makes the sweetest statement, but good cantaloupe will do the job.