These stations are forced to schedule shorter pieces during drive times. The trick at such stations is to strive for a complete piece. The trend is also toward happier music. During drivetime down tempo music is avoided. Announcing Classical stations employ program hosts, not DJ's These hosts are expected to know and appreciate the music.
Pronunciation is critically important.
Classical hosts are allowed to have personalities. Often the audience tunes in because they like the host and the host's interpretation of the music as much as they like the music. News News is still important at classical music stations. Some stations concentrate on updates as opposed to full newscasts. However, the audience is perceived as educated and informed.