Creating music meant to purposely evoke the past can be tricky. Recreate the sounds of a specific decade too closely and the music becomes too nostalgic, pining for a time the artist never even knew existed. On the other hand, approach bygone times too cynically — as the Internet-born microgenre "vaporwave" does by perverting old commercials and corporate sounds — and it starts to sound like a joke. Tokyo's Shortcake Collage Tape, the solo project of Azusa Suga (who also fronts indie-pop trio For Tracy Hyde,) takes an alternate route on the new album "Spirited Summer." Suga splices samples from various time periods to create original songs that radiate warmth and good times but also conceal a melancholy for lost moments.