a very enticing 27-CD box set. All the key works are here . . . it makes a near-ideal introduction to the composer . . . [Mravinsky's symphony recordings] are true classics and enshrine a style of performance that draws its strength from the notes rather than from a manipulation of them . . . [Mikhail Pletnev and the Russian National Orchestra] also give us most of the tone-poems and overtures, and they're done with great flair . . . [the Antal Dorati/New Philharmonia recordings of the four Orchestral Suites] stand the test of time very well. Dorati is a fine guide to these neglected works and the New Philharmonia play beautifully . . . Seiji Ozawa conducts the Boston SO in