TR-909 Rhythm Composer

After the sojourn into lower-cost drum machines like the TR-606 Drumatix, the TR-909 marked the return of Roland’s premium ‘Rhythm Composer’ soubriquet. A physically imposing instrument on the scale of the TR-808, its aggressive, punchy sounds have gone on to become staples of modern dance music genres. The chapter begins with a detailed technical analysis of the instrument’s sound circuits which, for the first time in a Roland instrument, bring together a mix of analogue and digital sources. In the wake of the Linn LM-1 drum machine, samples may have seemed de rigeur yet, as this chapter demonstrates, the development of the TR-909 reveals a degree of friction between engineering and creative desires, market forces and a shifting technological landscape. The chapter continues by exploring the importance of the TR-909’s sequencer and its implementation of ‘Shuffle’ that proved so crucial in moving electronic music off the strictly metronomic, machine-like grid. The chapter concludes by investigating the musical, technological and cultural legacy of the TR-909 and its reimagination and transformation in modern hardware and software recreations.