... here used in a wide sense. One cannot sing continuously on such a sound as b or d, but one may easily outline a tune on a series of b's or d's in the manner of the plucked "pizzicato" on stringed instruments. A series of tones executed on continuant consonants, like m, z, or l, gives the effect of humming, droning, or buzzing. The sound of "humming," indeed, is nothing but a continuous voiced nasal, held on one pitch or varying ... — Language - An Introduction to the Study of Speech • Edward Sapir
... near a small stove, completed the furniture of the place. In the evening, the dim light from a lamp hanging from the ceiling shows the indistinct figures of a double row of natives listening to the nasal cadences of a band who play a pizzicato... — All About Coffee • William H. Ukers