Rounds: Sequence Synthesizer Plugin by Native Instruments

Rounds ships with two engines. The analog engine is modeled on a classic two-oscillator synth and is built for a warm, harmonically rich tone. The digital engine is an FM design with three oscillators and a 2-pole filter, which covers sounds from clean and sparkling to metallic and dissonant, with clear note definition.

Each engine supports up to eight sounds, and each sound keeps its own independent parameter settings. That gives you a way to mix analog and digital timbres inside one instrument and sequence between them.

The Voice Programmer is the core of Rounds. It contains eight blocks with four cells each, so 32 sound slots in total. Each cell hosts one sound, and five voicing modes control how sounds are distributed across the cells. A modifier lets you refine each voicing mode further.

For performance, the Remote Octave feature maps block on/off assignments to the white keys, while cells map to the black keys so you can switch them in any combination in real time. Up to eight macros can be assigned for control from hardware, and the Multi-Edit view lets you change one parameter across all sounds at once.