Aye-Aye is a twofold way to refer to different things: an aye-aye (noun) is a nocturnal Malagasy lemur known for its long middle finger used to probe hollow trees, and “aye-aye” is a maritime or nautical term sometimes used as an affirmative in informal speech. In general usage, it denotes the animal in zoological contexts or an enthusiastic yes when quoted or sung. The pronunciation treats the two elements as a tautological compound with a clear double stress on the first syllable, then a less stressed second, depending on usage.
Full pronunciation guide