User blog comment:Kiyuhito/New My K-ON! Collection/@comment-30764484-20140616063910

The manga translates more based on meaning and for the sake of English-speaking readers. "Light music" is, for all intents and purposes, "pop music", that's translating the meaning so it's better understood by a non-Japanese reader. "Light music" is all music played by rock bands, meaning, four, five, six people with the instruments you would expect (rock as a genre isn't what I mean here). It's "light" because it's not a full orchestra type band.

Giita is "Gui-ta" so the reader knows how to pronounce it, which isn't necessary in anime, since you're hearing the characters say the word in Japanese as you read the subtitles. It's the difference between "phonetically" and "foneticali". It would make a great trivia entry on the main Manga page, but I don't think we should use that as the standard spelling.

Overall, the manga tends to translate a bit excessively, like how "Azu-nyan" becomes "Azu-meow".

I really like that artbook, in fact, I think we should note that it exists on the manga page. While there's so much stuff made for the anime (soooooooooo much merchandice), the artbook is really the only manga-related thing aside from the six volumes themselves, and it is official. It's also a really nice artbook, I'm glad I got it. Thanks for sharing your shiny new stuff :)