Bouzouki and helped elevate the bouzouki into a truly popular instrument capable of a wide range of musical expression. Recently the three-course bouzouki has gained in popularity. The first recording with the 4-course instrument was made in 1956. The Irish bouzouki, with four courses, a flatter back, and differently tuned from the Greek bouzouki, is a more recent development, stemming from the introduction of the Greek instrument into Irish music by Johnny Moynihan around 1965, and its subsequent adoption by Andy Irvine, Alec Finn, Dónal Lunny, and many others. This is the classic style of bouzouki, introduced around 1900, that was
Bouzouki better suited to the kind of virtuoso playing he was famous for. Today, the tetrachordo is the most common bouzouki used in Greek music, though a few traditionalists still prefer the trichordo, particularly for the older "rebetika" style of playing. In addition to developing the modern tetrachordo bouzouki, Manolis Hiotis was a pioneer the use of amplification for the instrument, which he may have been using as early as 1945. However, the earliest documented use of amplification for the bouzouki comes from a 1952 photograph, showing Vasilis Tsitsanis and Yiannis Papaioannou playing bouzoukis, each with an electric guitar-style pick-up attached