Well, I, for one, am glad that groups of plucky young musicians get together and decide to make jazz fusion in the year 2021. As an avowed devotee of late-'60s through -'70s fusion as pioneered by the likes of Miles Davis, Herbie Hancock, and Mahavishnu Orchestra, I can’t help but smile when a contemporary band can hit with horn voices, electronics, and funk rhythms all at once. Iowa City’s four-piece band Wave Cage get there.