In guitar playing, an open tuning is one where the strings are tuned so that a chord is achieved without fretting, or pressing any of the strings.

在吉他演奏中，开放式调弦是将各弦调成一个和弦，这样就不需按弦就可以弹出来。

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Besides, I wished to touch no deep-thrilling chord -- to open no fresh well of emotion in his heart: my sole present aim was to cheer him.

此外，我不想去拨动那剧烈震颤的心弦——不想在他的心田开掘情感的新泉。 我眼下的唯一目的是使他高兴。

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Most blues feature simple, usually three-chord, progressions and have simple structures that are open to endless improvisations, both lyrical and musical.

大多数布鲁斯乐的特点是简单的，通常是三和弦的和弦级进，而在词作和音乐上的简单结构则对于无穷无尽的即兴敞开了大门。 。

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Note that, despite what you may have been playing in your local band, the variant of the chord is fixed and you can't vary it up: an open G chord can't be played with a barred G chord or any other different fingering.

ENGADGET: Rock Band 3 Pro guitar preview: the guitarist vs. the guitar hero

An open G chord is technically third position given its location of the root note, but in Rock Band 3, that particular variant displays a "2" that falls on the A string.

ENGADGET: Rock Band 3 Pro guitar preview: the guitarist vs. the guitar hero

Man has landed on the moon, punk has been and gone, and the shops are open on Sunday - but Status Quo are still dishing the same three-chord rock they did during the time of the three-day week.

BBC: By BBC News Online's Darryl Chamberlain