Based on its crisp, thoughtful, & engaging songwriting alone, veteran singer/songwriter Maia Sharps fourth solo album is a triumph featuring the kind of melodic grace & colorful wit that have characterized the tunes she has written for everyone from the Dixie Chicks to Cher, Edwin Mc Cain, Lisa Loeb, Trisha Yearwood, & many others. While she admits, in jangling rock fashion, that she wont be part of anyones " Polite Society, " her social observation skills about how the lesser people live