In general, any kind of music, or talking, DOES increase a plants Vigor and Growth and maybe even helps it prevent illness, as for what kind of music depends on you. Personally, my plant listens to Pink Floyd, sometimes SoaD and occasionally sublime.

Supposedly heavy metal is the most effective for promoting growth and vitality.

But I'm a dirty hippie and I think plants have feelings, so I make sure my plant doesn't feel screaming all the time (they sense the vibrations music make, they don't 'listen' to it).

Also, you might want to try some cheap Co2 with it. Just a 80%water 20% sugar mixture and yeast - and Co2 is HEAVIER then air, so make sure it's raised above or level with the plant.