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Looking for an anime that had an intro or outro song that went like this part way through: kana humu, kaana hunuhunuaaaaaaaaaaaaaaay, hey hay.
I was positive it was Texnolyze or SerialExperimentsLain but it seems not to be unless the music was changed partway through.
It featured acoustic guitar, and just the one male singer.
The long haaay and hey hey, by the Japanese singer are the most accurate parts of my recollection.
