For one, it's a mono speaker, so it does lose a lot of sound,
particularly background vocals, second guitars and the like.
The review also points to another tendency in Frankenthaler's early reception —
particularly in magazines such as Time and Life, which covered the female Abstract Expressionists (or, according to one article, «The
Vocal Girls»)-- that emphasized her good looks, privileged
background, and alliances with powerful men, among them the critic Clement Greenberg and the artist Robert Motherwell, over considerations of her work.