Early music, played on period instruments, was probably far down the list of priorities, if it was there at all.
Prior to this time, other bamboo musical instruments were probably in use, just as bamboo tools were used in pre-Neolithic times.
I argue that the instruments were probably made from the diagrams and text of the manuscripts, and suggest that Chaucer's posthumous fame encouraged the production of astrolabes to his design.
Primitive instruments were probably designed to emulate natural sounds, and their purpose was ritual rather than entertainment.
Such shell instruments were probably invented to measure 8 12 whole sections of the horizon and sky, explaining the slits on the lower and upper margins.
If not, the HR-PRO instrument is probably based on a formative model [ 8].
In our cohort study group, approximately 50% of the men and almost 65% of the women confirmed at least one of the two depressive items, which indicates that the instrument is probably very sensitive but had low specificity in our study group.
These figures and especially those from the 1984 study are considerably higher than the ones reported in the present study, but the different instruments and sampling frame are probably the major source of discrepancy.
While global cognitive instruments such as the MMSE are probably the most commonly used measure of cognitive functioning domain specific neuropsychological tests have been demonstrated to show increased sensitivity to early stages of cognitive impairment than measures of global cognition [ 32].
