I just finished (or near finishing) my first plugin which is a spectral synth which allows users to draw harmonics, drag and drop sounds to resynthesize, and drag images which map to harmonics. There's also a lot of other functions like a traditional subtractive synth engine, arp, tape delay, etc. 

I think it uses 1024 sine waves when on the 8 voices mode, so its pretty powerful (also cpu intensive). Here in this video I show it playing the Girl with a Pearl Earring painting plus some quick drawing at the end. I wanted to send out a bunch of free licenses to people here, so please play around with it!  
Here's 15 perpetual licenses:  


MP678-3VNLU-IN51H-7WSIF-MJ6JH  
JYUH3-IUWEM-RQEP5-LN66I-NJI2P  
PW2IG-9RZA9-NGJ2L-194FL-O0S8U  
H0QVS-RRIGK-5Z7SQ-RIBVV-YA6P6  
SAAUJ-OEMOH-GY1W5-9MN34-KDUWK  
OYCKX-TYF81-055DU-NXVOY-I8VOH  
WH99L-XNZB5-JHA9H-KLHF9-48E4Q  
IEWKU-0SOXG-E2M2I-IJ7Q1-TW0K3  
IUW7S-8UP1S-DUA7O-ZYVEB-7IV11  
OGFFN-DSUWK-EX4KT-6NZ0D-W8TQO  
P0YM2-CQPFF-XZDZS-2RKYY-AS83I  
LQWCR-PA4OQ-M6VJB-L6L2E-ES51N  
X97NK-BNDJ5-A49H3-SRG4I-UG0IU  
NWIM2-JQ956-K609C-YV5GP-CW7WW  
MXOX1-RQ2R6-L5G6T-WGRD8-B55YM

Here's the page for the downloaders: [https://gulfcoastsynthesis.com/trial-download.html](https://gulfcoastsynthesis.com/trial-download.html)

I haven't fully built out the presets yet, but if anyone makes any cool ones, I'd love to include them!  


I made a Spectral / Additive Synthesizer!