This article dissects the Mozart Effect and challenges its claimed positive effect of music on the IQ.
In meetings, music can play a role, but increasing the participant’s intelligence is not part of it, if we read Will Downs article, citing many inconclusive studies. One such study propose a link between studying music or playing music and IQ development, not the passive listening to music.
About the original 1993 study that supposedly demonstrated the Moart Effect for the first time the article asks a question: "Is it possible that the music simply stimulated or uplifted The subjects?"
If that would be the case, the meeting industry could certainly us that effect.
The 3 page article can be found in the Magazine Skeptic Vol. 13 No. 4 2008.