
Rusty Trombone Erectifier
Platform/format: PC and Mac/VSTDownload
The Rusty Trombone Erectifier – that name alone should be enough to make you want to download this doubler/phaser/exciter plug-in, and the charmingly homemade-looking interface will draw you in further. Developed by Shuriken, it's designed for widening and phattening your sound, but it can also be misused in other ways.

Evopax D1-A Graphic EQ
Platform/format: PC/VSTDownload
The big idea behind this graphic EQ is that it sounds distinctly analogue but, because of its 'multi-dimensional buffers' (values used in the plug-in are pre-calculated), it shouldn't put too much strain on your CPU. Version 1.1 is now available, and enables you to select three different types of filter mode – one for each resonance level.

Freeverb3
Platform/format: PC/VSTDownload
This open source Impulse Response processor has just been updated to version 2.0.7. Several bugs have been fixed, and stability in zero-latency mode has been improved. Give it a spin.

Joe Real Jazz Piano
Platform/format: PC/VST Download
Chances are that you already have an acoustic piano in your sonic armoury, but if you don't – or if you're unhappy with the one you've got – you can try Joe Real's offering. It's described as "warm with good bass and treble", though the developer does warn that you "need to have plenty of memory".