The fuzzy tones and beeps of the beloved 1990s video game series Pokémon is being transformed by Australian symphony orchestras.

The American producers behind Pokémon: Symphonic Evolutions are bringing the show to Adelaide and Sydney.

They believe video games are often underestimated, and many have soundtracks with serious musical credentials.

Although converting the Pokémon games into a symphony set was not without its challenges.

"Because it was just the beeps and bloods it didn't really have any voice of its own in that sense, so it's actually I find easier to take those, and say oh, this melody can go into the French horns, this melody can go to the violins and this baseline can go to the cellos," composer Chad Seiter said.

"It's sometimes easier to deconstruct it whereas when you get into later games that are written with much more complex synthesisers, now it's actually the trumpets doing a melody and you say the trumpets can't actually play this, we have to figure out a way to make this work."

Seiter's wife, Susie, is the conductor.

"It is definitely the real deal musically, because the music is very sophisticated and challenging, and it appeals to everyone," Ms Seiter said.

"I think people in the concert hall and people everywhere want to be challenged.

"They want to hear interesting music and beautiful melodies."

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The show has completed an extensive tour through North America.

Producer Jeron Moore said many fans attending the concerts were seeing a symphony for the first time.

"That can be really eye-opening, because seeing any orchestra perform anything is generally a really magical experience when such a large group of musicians come together to coordinate and produce a larger than life sound," he said.

Pokemon: Symphonic Evolutions is performing with the Adelaide Art Orchestra on Tuesday, November 17, and with Sydney Symphony Orchestra on Friday, November 20 and Saturday, November 21.