The instrument
The Roland TR-330, released in 1973, is an early analog drum machine from Roland Corporation. It was designed as an advanced version of its predecessor, the TR-33, and was released between the TR-33 and TR-77. This drum machine was one of the first to be housed in the wooden box-style that would come to characterize Roland drum machines of the late 1970s. The TR-330 catered to musicians and small bands needing a versatile and reliable rhythm accompaniment. Although not as famous as later models like the TR-808, the TR-330 holds historical significance as part of Roland's foundational efforts in electronic percussion.
While the TR-330 did not achieve significant commercial fame, it played a role in the evolution of drum machines and was used by musicians seeking accessible electronic rhythm options. Its introduction of the wooden box design set a visual and functional precedent for future Roland models, emphasizing ease of use and affordability in early electronic music production.
Details
The Roland TR-330 features eight analog drum sounds, all of them linked to a volume and balance controls. The balance control could completely mute either the hi-hats or bass drum. This machine also marked the first in the line to feature a built-in amplifier and speaker, considered as surprisingly loud, warm and bassy for it's size. It's said it was powerful enough for band practice.
The TR-330 includes mono line out, footswitch on/off ports, and various modifications for individual outs and extensive sound shaping possibilities. It has a metronome switch that converts the "Swing" modifier button into a standard metronome usable alongside internal beats.
The TR-330 comes with ten preset beat buttons, all of which can modify each other in unpredictable ways when combined, providing a versatile unit with countless rhythmic combinations including irregular time signatures and swing options. As such, the TR-330 is considered a forgotten classic in the Roland TR drum machine series.