The physical vibrations from the sound will help strengthen the plants, just in the same way blowing air does to give them exercise... but it'd only be a tiny bit with sound unless you had some subs thumping near them!

As for more scientific aspects of sounds affecting plants, such as production of proteins, look up info about a guy named Joel Sternheimer.

All we'd need to know now is what specific frequencies will help cannabis grow...

I found this on another cannabis site with references to frequencies of sound in the 5000Hz range. Marihemp: Advanced Growing: 5,000 Hertz Frequencies To Boost Growth Of Plants!

Nutrients made by Sonic Bloom are even designed to work with sound... hahah that's wild, I'd heard about that line of nutrients but never knew that they intended for sound to be used with it until I just now looked it up.
GreenDestiny Reviewed by GreenDestiny on . plants & music I've heard so many good things about plants and music.Anyone tried adding a radio to thier grow room?If so,what were the results? i think it makes sense.If you were stuck in a room all day,with nothing but a 600w light and electric fans....life would seem pretty boring.But add a little classic rock,and life is so much better...:) Rating: 5