In Elegy on Toy Piano, Dean Young's sixth book of poems, elegiac necessity finds itself next to goofy celebration. Daffy Duck enters the Valley of the Eternals. Faulkner and bell-bottoms cling to beauty's evanescence. Even in single poems, Young's tone and style vary. No one feeling or idea takes precedence over another, and their simultaneity is frequently revealed; sadness may throw a squirrelly shadow, joy can find itself dressed in mourning black. As in the agitated ""Whirlpool Suite"": ""Pain / and pleasure are two signals carried / over one phoneline."" In taking up subjects as slight