Atmos is a freeware grand piano rompler created by Beatmaker, available in VST and AU plugin formats for PC and Mac.
It features the sounds of a grand piano that was sampled from C2 up to C9. Atmos is described as having an “ambient piano” sound due to the rather high level of processing applied to the samples that are used in this freeware plugin.
The processing includes two types of reverb, saturation, and various time-based effects. Some of these effects are already printed onto the samples themselves, but the plugin also features a built-in reverb module that is controlled by one of the dials on the user interface. Other controls include attack/release, pitch, LFO rate, LFO depth, pitch bend, gain, and pan.
One of the most unique features of the Atmos is the separate “sound layer” that can be mixed in with the base piano sound. While the short YouTube demo does not demonstrate this feature, it’s something I’d be interested in hearing. The overall sound of the Atmos is dark and brooding, exactly what you’d expect from an ambient piano ROMpler. I wouldn’t necessarily try fast rhythmic piano parts on it since long reverb tails are its bread and butter. But if you need to set up an atmosphere in your track quickly and easily, you may find this is just what you need.
My one suggestion to the creators of this grand piano plugin would be to create a way to strip off all of the effects and hear just the basic raw piano sound. This could be helpful if you use Atmos to set the stage for your track but then want to add your own custom third-party effects to the piano sound while fine-tuning the mix.
Atmos is available for free download via Beatmaker (238 MB download size, ZIP archive, 32-bit & 64-bit VST/AU plugin format for Windows & Mac OS).