'... in the
Netherlands (where it never seems to have had much success)"... "it
never becomes really popular as its tone is too weak". (Denis p.41):
presumably Denis means that the dulcimer was not as popular as the violin
or the harpsichord; if he means no more than that then there can be no contradiction.
tone of these statements seems to imply that the instrument is not worthy
of much serious attention because it is not in the mainstream of popular (i.e.
generally-liked) music, a conclusion which can scarcely be tenable now, even
if it was when musicology was in its infancy.
as quantity is concerned, there was certainly enough Netherlands material
for Hubert Boone to have carried out a worthwhile, if not particularly
extensive, study, had he not - happily - been diverted on to fretted
about a weak tone is interesting, since no evidence in this study has
pointed to this conclusion.