Violin where a stopped note sounds a unison or octave with another (open) string, causing it to resonate sympathetically. Students often use these ringing tones to check the intonation of the stopped note by seeing if it is harmonious with the open string. For example, when playing the stopped pitch "A" on the G string, the violinist could play the open D string at the same time, to check the intonation of the stopped "A". If the "A" is in tune, the "A" and the open D string should produce a harmonious perfect fourth. Violins are tuned in perfect fifths, like
Dropped A tuning result, it uses the same fingering as drop D tuning and drop C tuning. An alternate dropped A tuning utilizes a guitar tuned to E Standard with the 6th string dropped to a low A, resulting in AADGBE with the 6th and 5th strings an octave apart. Another variation of this tuning is AEADGB, which imitates a 7 on a six-string, excluding the high E. Another dropped A tuning is AGCFAD ("drop perfect fourth in the key of the D", i.e. whole guitar is tuned down one step, then the lowest string is dropped to A). Dropped A tuning Dropped