Marsalis interprets jazz standards and few (neo-classical) originals with dexterity and feeling, mostly relying on the bop and (mainstream) neo-bop language, only marginally using (or even ignoring) the stylistic achievements of the classical jazz and of the 70's avant-guarde.
That is to say: this is a coherent and well thought through, not just well played album (by a well-rehearsed and more than competent band).
The dominant mood is somewhat sombre and gloomy, not just because many of the standards are ballads, but check out the two witty and relaxed versions of "Cherokee", a swing standard that became a favorite bop property....
By the way, the booklet cites Johnny Mercer as the author of the well known French tune "Autumn Leaves" (music by Kosma, lyrics by Prevert)... Mercer may be the author of the English lyrics (not used here - there are no vocal tracks on the album).