Vienna or Prague?

I have never been to either of these cities....but I hope to get to see both eventually....and I probably can't do them both justice on one trip. I have read good things about Prague lately....and I am keen to see Vienna because I am a classical music lover. I suppose my question is....which should I try to see first?
I've lived in Prague for years, and visited Vienna many times. You'll have a memorable time in either city. Prague is inspiring, the spires and domes of the cityscape are beautiful, and you can meander down the streets of Old Town or New Town, or any of the adjacent neighborhoods and take in the feel of cobblestone streets, cozy cafes and all the elegance the city has to offer. It's an upbeat cosmopolitan city that lives entirely up to everything you'll read about it. Vienna feels a little bigger, and it's really a beautiful city, you can't go wrong to pick Vienna. And the palaces are much more majestic than Prague Castle. But overall I think you'll get a much better experience in Prague. Yes, Vienna is a haven of classical music, but Prague is definitely a top 5 worldwide classical music destination. You can attend operas and symphonies playing the classical masterpieces for the tourists and locals every night of the year. The National Theatre and the National Opera house are must visits considering your classical music interests. Also St. Nicholas' Church at Staromestske namesti plays daily symphonies, and I don't have to tell you about a stop at the Mozarteum. In the Czech Republic, classical music is a national pasttime and a national right. Plan to spend about $5-$15 USD a day/night to attend concerts and symphonies, as any local can afford the good, popular concerts.

Prices are becoming more expensive in Prague, but it's still very affordable compared to Western Europe or the US. Enjoy yourself, and relax to know you're only a short train trip to Vienna if you have the itch to see more.