School orchestra

This is labeled as a Swedish children's orchestra, but one of the comments may clarify...

That is NOT a Swedish Children Orchestra. What you hear is the Portmouth orchestra and it was recorded back in the 70. It was an orchestra for fun and they made recordings. To be part of the orchestra, you either had to be a bad musician or a beginner in the instrument. Look for Portsmouth Sinfonia : "Also sprach Zarathustra" on YouTube