There are several potential sources of images from IROM.

• https://graphic.nobody.jp (main site)
• https://digitalstamp.suppa.jp/ (there are some none related things here, check)
  • instruments are at https://digitalstamp.suppa.jp//musical_instruments_[letter]/
• https://irombook.blogspot.com/ (this site also has a set of links in the topright corner)
• https://saisaibatake.ame-zaiku.com/gakki/gakki_main.html
  • images here all seem to be under the https://saisaibatake.ame-zaiku.com/gakki/ folder (check)
  • (additionally this site has pages for instruments, we could potentially link these to our instruments "other dbs style" (eg https://saisaibatake.ame-zaiku.com/gakki/viola_di_bordone.html)
• https://irom-musical-instruments.blogspot.com/ (which are grayscale only, I think, check)
  finally it appears that IROM will update his twitter https://twitter.com/asihuretirom with new images as they are made (might want to put some sort of update-cron, rss-subscription, whatever, to notify us of new images made so we can get them.)

You have to image fetch pretty much every single image from the above sections, possibly using wget or similar. It'd be good if we did the initial getting over a time, so as to not hammer IROM's servers.

All of these things. when you batch get all the images of IROM, you have to make sure to get all the versions, there are images of the instrument alone, of a person playing it + grayscale versions, there are also thumbnail versions but it is unclear for me if some exist "instrument alone" only as thumbnail versions.
ALL images must be gotten first time.
Luckily it seems all image names are in english and there is some logic with sorting player ones and greyscale ones under folders/directories named logically.

examples:

• https://graphic.nobody.jp/illustrations/image/sursringar.jpg sursingar player image
• https://saisaibatake.ame-zaiku.com/musical/instruments/sursringar_i.jpg instrument alone
• https://digitalstamp.suppa.jp/musical_instruments/sursringar_s.gif thumb alone
• https://graphic.nobody.jp/grayscale/gray_s/sursringar.gif thumb sursingar player greyscale
• https://graphic.nobody.jp/grayscale/gray/sursringar.jpg sursingar player greyscale

• https://graphic.nobody.jp/musical_thumbnail/sarod.gif sarod thumbnail (does this one exist larger?)
• https://graphic.nobody.jp/illustrations/image/sarod.jpg sarod player image
• https://saisaibatake.ame-zaiku.com/gakki/picture/sarod_play.jpg alt player image
• https://saisaibatake.ame-zaiku.com/gakki/imgi/sarod_i.gif instrument alone
  • (this also a has a descriptive image illustration https://saisaibatake.ame-zaiku.com/gakki/musical_note/sarod_jawari.gif which we might as well also fetch as it could be useful later)
• https://graphic.nobody.jp/grayscale/gray/sarod.jpg sarod player grayscale