From Wikipedia:

> The "Roland" name was selected for export purposes, as Kakehashi was interested in a name that was easy to pronounce for his worldwide target markets. The name was found in a telephone directory, and Kakehashi was satisfied with the simple two-syllable word and its soft consonants. The letter "R" was chosen because it was not used by many other music equipment companies, so would stand out in trade-show directories and industry listings. Kakehashi did not learn of the French epic poem The Song of Roland until later.

"Sony" has an interesting history as well. The official line is that it was a mixture of "sonus" and "sonny" boys (see https://en.wikipedia.org/wiki/Sony). But I have it on good authority from people in the know in the company that the real reason for the name Sony was that it sounded like an American company name to Japanese ears. America was cool. That is, namewise Sony was the Japanese equivalent of Haagen-Dazs. It's even written in Katakana, the script for foreign words.

What's difficult to pronounce about ローランド for a native speaker?

I'm quite familiar with anti-imperialists of various sorts. They generally don't start ranting about Trotskyists. That makes this person sound decades out of date.