Uke fans will eat it up. During the past decade or so, the small four-string guitar has attracted a large number of serious musicians but also a lot of people who like the instrument because it seems less daunting (and more portable) than the six-string guitar. Like most musical-instrument fans, uke players seem to love arcana. And they relish the novelty aspects of ukedom, although some say they could do without the kitsch. Whatever. The Occasional feeds these passions.