Wikipedia:Articles for deletion/Roland JD-990
I am actually outraged that you would suggest deleting all these. I am a musician hobbyist and know most of these synths. I owned JD-800 the keyword version of JD-990. The JD-990 is one of the most powerful rack mounts ever made and has a huge fan base in the Synth world. The Roland System 100/100m/700 are one of the first modular synths ever made and very power, also has a huge fan base. Also excellent synths: Alpha Juno (I own the rack version MKS50), JP8000, D-70, JX and SH stuff (I used to own SH-1000), etc.  I can go on and on about many of these. If you have specific issue with a specific page, please only nominate those pages and raise your issues. Perhaps a few similar synths can be bundled, but if so, you need to suggest that. Finally, the biggest argument is that many of these synths are very notable, maybe not notable to the general public, but there is a huge community of synthesist that have interest in these and search online for info about them, so Wiki should have these info. Regarding your  argument, Roland have hundreds of products and it would not be easy to add all in one page, so their products should have their own pages. I will see if I can improve any of them and add more references. I did notice that the JD-990 had only one reference, so I will try to add more
— User:Peter303x, 17:29, 22 March 2019 (UTC)
Stance: keep
Cited policy: WP:PRODUCT (Wikipedia:Notability)