關於裝飾音(trill)

視乎年份而定，正如之前的朋友所提，以1800年為分界，如果你不清楚年份，巴哈的二部創意曲(相信你已學到4級以上才有這個疑問, 3級或以下一般會在譜上有提示)、小巴哈(First Lessons in Bach Book1 &2)、小奏鳴曲(sonatine)等作品由上音(upper note)彈回本音(principal note),例如在D音出現trill,你要彈EDED......
More Romantic Pieces的樂曲如是蕭邦、舒伯特等作家都是由上音彈回本音。再後期的作家可以從本音向上彈。
如果是快板的樂曲，1個四分音符的音彈trill基本要變成4個十六分音符(當然視乎你的技巧，愈高級應可以彈更快更多，一般八級以下不會超過8個三十二分音符。)如果是行板或更慢的樂曲，1個四分音符基本是彈作8個三十二分音符。
trill要跟Key signature的指示，如果trill上方加上臨時記號，即是上音要另加臨時記號，例如E有trill上有#，要彈作(F#)E(F#)E。

１．應該向上trill（通常）　
２．１度　

TRILL......是震音ㄉ意思阿....
一般是放輕鬆....快速用食指和中指快速輪替.....
依個人技巧能力....盡量快速...
不用去算幾次....只要在小節拍數內....

Trill
A trill is a rapid alternation between an indicated note and the one above, also known as the shake. Usually, if the music containing the trill was written before 1800 the trill is played by starting a note above the written note. If the music was written after 1800 then the trill is usually played by starting on the note written and going up to the note above. A printed score will often indicate which interpretation is to be used, either in the preface to the score or by using a grace note.

Sometimes it is expected that the trill will end with a turn (by sounding the note below rather than the note above the principal note, immediately before the last sounding of the principal note), or some other variation. Such variations are often marked with a few grace notes following the note that bears the trill indication.

The trill is indicated by either a or a ~~, with the ~ representing the length of the trill, above the staff.



若果個trill 符號(tr~)出現在D音上,通常的彈法是:
EDEDEDCDC
trill ge音洗通常要跟key signature