DroneLab Pro is a soundscape synthesizer based on analog multisamples. The onscreen keyboard with scale mode makes it easy to get started; the included presets have scales and chords that work well together. You can save your own presets, export audio, use external MIDI. It runs as a standalone app, and also as an AUv3 plugin. The sounds start with custom-created analog multisamples, each with four velocity layers. There are two parts which can independently load the multisamples. Each part includes filter modulation which can be BPM synced. The parts can be set to drone on their own, and they be also controlled by the onscreen keyboard or external MIDI. An additional sound effects part starts with rain, stream, river, and city sounds recorded specifically for DroneLab Pro. These can be used as they are, or modulated for unusual yet natural-sounding effects. A global reverb can be applied, with each part having separate control over the reverb amount.