Bouzouki in the soundhole. There are also numerous photographs between 1953 and 1959 showing bands in which both vocalists and bouzouki players are using microphones for amplification. By 1960 special bouzouki pickups (such as the German "Ideal") were being produced and permanently mounted in the instruments. Similar pickups are widely used by several Greek artists today and come in active and passive versions. The Greek baglamas () or baglamadaki () is very different from the Turkish bağlama. The treble baglamas is pitched an octave higher (nominally D–A–D), with unison pairs on the four highest strings and an octave pair on the
How many angels can dance on the head of a pin? about how many could perch at the same time on the head of a pin"". Dorothy L. Sayers argued that the question was "simply a debating exercise" and that the answer "usually adjudged correct" was stated as, "Angels are pure intelligences, not material, but limited, so that they have location in space, but not extension." Sayers compares the question to that of how many people's thoughts can be concentrated upon a particular pin at the same time. She concludes that infinitely many angels can be located on the head of a pin, since they do not occupy any space there: