"Traditional techniques" seems to me to refer to traditional contraceptive techniques - which he chose to forgo and now regrets. I think he is comparing this to how he (the character) as an artist chooses to avoid traditional techniques (in making music) to remain "fresh".
"Traditional techniques" seems to me to refer to traditional contraceptive techniques - which he chose to forgo and now regrets. I think he is comparing this to how he (the character) as an artist chooses to avoid traditional techniques (in making music) to remain "fresh".