| Each of these jacks has two plectra, one pointing to the right and one to the left. |
| The plectra nearest the keyboard points the same way whether the jack is upside down or not. |
| This instrument is quilled with crow quill, the most common material used for plectra at that time. |
| Observers have seen spiny lobsters scrape their leathery plectra across scaly ridges below their eyes. |
| The direction in which the plectra of each row of jacks should be pointing is not known. |
| The strings of the kanun are plucked with fingerpicks made of tortoise shell or horn plectra which extend from each index finger and are held in place by circular metal bands. |
