Denver indie-pop duo Tennis follow up 2012’s Young and Old with Small Sound, the last drop of summer light squeezed from a lemony sun. Each song is clean, easy listening, polished to gentle perfection by producers Jim Eno (Spoon) and Richard Swift (The Shins). Singer/keyboardist Alaina Moore (Nina Persson meets Stevie Nicks) harmonizes perfectly with herself on “Timothy.” “Mean Streets” kicks off with a “Bennie and the Jets” piano line and Moore’s trumpeted “eh eh eh’s.” Patrick Riley’s deft guitar work, coupled with James Barone’s drumming and some sweet horns, gives “Cured of Youth” a breezy nonchalance. “100 Lovers” is 100 percent blue-eyed soul. Soft rock for sweatered hipster thirtysomethings, this is what you queue up on a Sunday morning drive to the growers’ market.