Hierarchical temporal structure in music, speech and animal vocalizations: jazz is like a conversation, humpbacks sing like hermit thrushes

Oh this is wonderful! Cross-species comparison of music / speech /animal sound.
 
Hierarchical temporal structure in music, speech and animal vocalizations: jazz is like a conversation, humpbacks sing like hermit thrushes
 
“We analysed four main categories of complex vocalizations and musical performances, each with four subcategories: (i) bird song and whale song, including nightingale, hermit thrush, humpback and killer whales (orca); (ii) human vocalizations, including original and synthesized TED talks, naturalistic interviews, and singing; (iii) popular music, including rock, instrumental pop/R&B, acappella, rap and electronic dance music; and (iv) classical music, including piano solos, violin concertos, guitar solos and symphonies. We compared these vocal and musical signals with jazz instrumentals as an additional category, and thunderstorm recordings as a complex but non-biological reference signal.”

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