Music is a divine vehicle that can take us to a higher state. But not any music – music itself must be in tune with Spirit, in other words to emit divine vibrations. 
Indian classical music, which is based on the primal sound OM, emits such vibrations, and also many of the works written by the great Western classical music composers. Many of the titans who are considered geniuses in music were born realized souls (Mozart, Bach, Vivaldi, to cite a few). 
The researches have shown that especially Indian classical music gives the desired soothing effect to the body, lowers mental tensions and has been recommended for patients suffering from heart diseases, high blood pressure, diabetes etc. 
Our choice of music for meditation may vary. But our current mood is very effective in terms of choosing the music.