Yes, it was ayabushi!
My journey through Japanese traditional music stanted with this minyo: my mum was sick, and my dad brought her to the hospital. I was at my uncles and aunt’s house, and, days ago, I watched a cartoon i which there was a shamisen player. At my uncle’s, I clicked a YouTube video (not knowing what was it), and there was a singer who (mabe) played a (not minyo) shamisen, and sung aya! The key was major
Thanks for sharing all of those links. This version in minor scale is very pleasing to my ears!