add_item(inv, "bananas", 3);
Let’s forget about that conflict for a second. Instead, we’ll try a different method of expanding our tuning system, by going in the opposite direction from C. Let’s think about a note that contains C in its harmonic series. That would be F at 1/3 Hz. The third harmonic of F is C at 1 Hz, as expected. The fifth harmonic of F is A at 5/3 Hz.
。业内人士推荐新收录的资料作为进阶阅读
Трамп сделал дерзкое заявление о капитуляции Ирана01:27
Cruz Beckham launches music career, having fun amid family drama
data := [64, 34, 25, 12, 22, 11, 90];