When a Digital System is put together what ever the price tag, if streaming is used, the access to the music files is unlimited and done 'off the cuff'.
It is not really possible to tell if a music file from one genre is a better than a file from another genre. The most noticeable element will be the quality of the recording.
This passes over to Vinyl as well, and some of your chosen artists, will be from a period when vinyl was very high quality and others from the Digital Breakthrough era, when the Vinyl LP spiralled down rapidly to a very low quality.
New mainstream Vinyl LP releases today are with the same fate, I have returned new purchases more than once to get a acceptable copy, but inferior to owned 40 Year OId LP's
My advice would be to buy some pristine albums from enjoyed artists with pressed LP's from the 70's, or a re-release pressing from a reputable pressing company. Use these on your present set up to get the feel for the presentation compared to your digital, even A/B compare the formats.
This will give a better grounding on where the deficiencies are being detected from the source.