The aleatoric technique used in the piece is what Hovhaness called a “humming effect.” It occurs several times throughout the piece in the string section. The string players are instructed to play several pre-composed motives at a free tempo throughout various measures to achieve the effect. The aleatory nature of the technique was also controversial. In Arnold Rosner and Vance Wolverton’s writing on the piece: “… is hardly aleatory, since exact pitches are carefully controlled and any two performances will be substantially the same.”
Lousadzak was Hovhaness's first work to make use of an innovative technique he called "spirit murmur," an early example of aleatoric music inspired by a vision of his close friend, the mystic painter
Hermon di Giovanno. The technique involves instruments repeating phrases in uncoordinated fashion, producing a complex "cloud" or "carpet" of sounds. In an early program note for
Lousadzak, Hovhaness described this and similar passages as "[suggesting] the potential sounds out of which melodies are born." ==Reception==