Hi Gloria
I say go for it!!
Sound effecting only enhances the reality of a song and or adds creativity that puts your own stamp on it.
When I played the Beatles song Octupusses Garden, i added an Octopuss, or what sound i would think it makes!! lol!!
Also when I done Seaside Shuffle i put a bycicle pump sound in the middle, the one that goes whoop whoop whoooooooooooop!!
Either use the sound effects onboard the Genos or make them yourself.
You could also buy a 24 bit sound recorder and really go for it, but there are many sound effects around .
Just grab an effect and turn to a wave file if needed and put them on the Pad section via audio input.
You can edit in Audacity to what length of sample you need.
Roll on November 15th when the Fireworks really begin!!!
All the best
John