“Maceo! Blow your horn!” That’s how James Brown would dynamically signal his favorite horn player to take another stinging sax solo — and Maceo Parker never once let his boss down. Parker’s jabbing workouts in the midst of “Papa’s Got a Brand New Bag” and “Cold Sweat” made him a household name among ’60s funk fans. Now Parker is a star in his own right. His albums impeccably spotlight his soul-drenched alto sax on a sizzling hybrid of funk, R&B, and jazz.