Just intonation may also play a role in the blues. There is a theory that the blues originates from the natural overtone series of I and IV. If this is true, then the characteristic chords and scales of the blues are really 12-TET approximations of the original just intonation blues scale. It’s conventional to say that blues musicians and singers bend notes to make them go out of tune, but it may be that they are actually bending the 12-TET pitches to get them in tune instead.
in 1600s Europe and their skills would not be very useful.，这一点在搜狗输入法中也有详细论述
。关于这个话题，谷歌提供了深入分析
https://feedx.net
15 if let Some(ir::Terminator::Jump { id, params }) = &yes_target.term {。关于这个话题，新闻提供了深入分析