As the pioneering world fusion band Ancient Future prepared for its 40th anniversary concert (Tuesday, Feb. 12, at the Freight and Salvage Coffeehouse in Berkeley), founder and scalloped-fretboard guitar wizard Matthew Montfort brought a version of the group into the KPFA studio to perform live on “The Hear and Now.” The trio included Mariah Parker (santur) and Jason Parmer (tabla, udu). Derk Richardson hosted and Tony Ferro engineered, assisted by Bob Nelson.