[ 06/08/2018 ] Labels: 20.Vibration-Video
Endpin (particularly such as: steel pipe 10mmD, 35cmL below tail-pin, anchored on floor) resonates with C(66Hz) mezzo forte pizzicato. See 32 times slower video.
In this video, 125-tempo vibration --> 125 x 32 / 60 --> 66Hz(i.e. C fundamental vibration)