Sur is a free instrument for MNTRA's MNDALA 2 engine, built around the drone of Indian classical music. The vendor calls it a free taster of its portal instrument Naada.

It features male and female Tanpuras, custom-made by tanpura luthier Naeem Sitarmaker of Miraj, and the Shruti Box, a hand-operated reed instrument. Alongside them are creatively processed versions: a Tanpura re-amped through distortion and granular modules, and Shruti Box sounds run through envelope followers and guitar pedals.

A micro-tuning system lets each note be tuned finely, with preset tunings informed by the teachings of Dr. Vidyadhar Oke. Sur has 16 presets, 16 raga presets and 8 sound sources.

Recorded at 24-bit, up to 384 kHz. 1.2 GB installed, 3 GB recommended for setup.

Free, with your own licence key from Sonisto.

1. Install MNTRA's free MNDALA 2 engine: https://shop.mntra.io/install/mndala-2
2. Sign in to MNDALA 2 with a free MNTRA account.
3. In the Library tab, choose Add From Serial and enter your key.