Is music a sport?

You can't play a cricket or rugby match without an opposition.

In one the competitive element is intrinsic to the activity; in the other, it is

Take someone who plays a musical instrument - say the piano, the violin or the guitar (or whatever, really).

They develop prodigious amount of physical skill on a physical instrument, by going through lots of tedious training exercises to develop finger strength, speed and endurance. They either try to reproduce patterns perfectly (like gymnastics), or develop complex tactical skills (for example for improvisation with other players). They can then compete in front of an audience (lots of classical or jazz music competitions, or shows like X-Factor). Finally, performing is physically exhausting. (If you suffer even the slightest bit from stage-fright, it will even increase your heart rate.)

So, do you agree that music is actually a sport? If so, why not give pupils the option to choose a musical instrument in PE?

Sport should have a clear and defined winner, music is subjective and therefore not a sport

You can perform a dive, an ice dance or a synchronised swimming routine without an opposition.

Precisely. None of those are sports.

Come on, one even has "dance" in the name to give you a clue.

You can run 100 metres or throw a discus without opposition.

practicing running 100m by yourself and taking part in a 100m race shoulder to shoulder with your opponents are different though. How you run affects how they run.

I wouldn't necessarily call music a sport, although if someone asked me if I'd had any exercise/worked out/done any sort of physical activity, I would absolutely say "Yes, I practised the Euphonium for half an hour" (or words to that effect)

Not to mention carrying the euph up and down stairs, to and from lessons etc.

I want to buy an accordion so I can get a workout while actually having some fun.

I reckon taking up the organ would be good for that, mainly because it gives you a leg workout, and you could reach the pinnacle of coordination.

Although I reckon an accordion would be far easier to find, and cheaper. Still, I can dream!

20' accordion, 20' organ and 20' euphonium while running up and down the stairs = the perfect workout.

I want to buy an accordion so I can get a workout while actually having some fun.

Do you know the definition of a gentleman?

A man who who can play the accordion, but doesn't.

No it is not a sport. The definition of sport has already been diluted with things like darts it doesn't need to to be spread thinner.