If thirds and fifths are so out of tune in 12-TET, why do we use it? The advantage is that all the thirds and fifths in all the keys are out of tune by the same amount. None of them sound perfect, but none of them sound terrible, either. You don’t have to worry about whether your notes are derived from the third harmonic of some note or the fifth harmonic of some other note; they all just work together, kind of. If you use a digital guitar tuner, you are tuning your strings to the 12-TET versions of E, A, D, G and B. None of them will be perfectly in tune with each other, but they will all be wrong by an acceptable amount. Also, songs in the key of E won’t sound any better or worse than songs in the key of F or E-flat.
One of the great things about decentralization is that it makes information harder to tamper with.
。业内人士推荐新收录的资料作为进阶阅读
}See Chapter 9 for the full set of array and map operations.。新收录的资料是该领域的重要参考
所以接下来真正要变的，是这门生意没法再继续装糊涂了。。新收录的资料是该领域的重要参考