Its song is rich and wavy, typically consisting of a few clear, fluty notes followed by a short, high-pitched "twittering" at the end of each phrase.
In cities, blackbirds have been observed singing at a higher pitch and louder volume to ensure their song carries over the low-frequency hum of traffic. Functional Sounds
Each "sentence" in its song is distinct and delivered at a slow, mellow tempo, followed by a pause of a few seconds.
Beyond its beautiful "breeding song" used to attract mates and defend territory, the Karatavuk has a specific vocabulary for different situations: Blackbird - mchip.net