符头是指节奏的最基本的表达方式。
移动光标至的字符头 ctl
箭头操作符 arrow operator ; arrow w operator
清除字符串开头空格符 Ltrim
箭头符号 arrow ; Arrowhead ; FF Arrows ; Arrow Marker Symbol
字符串头 [计] head of string
截取字符串两头的空格 Trim
齐头符 full-out
避头尾字符 Kinsoku characters
起头字符 start-of-heading character
用于记谱的时值标识包括符头，符尾或连音线。
Durational symbols in music notation include the forms of note heads, flags or beams used.
符头可以是黑色的(圆形或卵形)或白色的，用在五线谱上以表明音高。符头的形状在历史上有很多种，比如在单音歌颂中。
Noteheads may be black (a circular or oval shape filled in) or white and are used on the staff to indicate pitch. The shape of noteheads has differed historically, as in plainchant.
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