Best new musical flooring for flooded basement

Had the same situation about 20 years ago. I went with slate & throw rugs. Sounds great & don't have to worry about wet carpet again.

Interesting recommendations. I would have chose a thick pad and high grade carpeting. 

I have faux hardwood floor laminate in my basement which I think was an improvement over the previous concrete

Use a solid vinyl product as mentioned by builder.  It is the only logical choice.  Carpet and wood, of laminates with wood fiber core are all asking for trouble and lots of future expense if further flooding.  Vinyl is acoustically pretty dead.  Can place an area rug that could be removed if threat of further water damage.

Live in an area where this is common. After two times I went tile floors throughout basement. May not be best acoustically, but it mops or vacuum’s right up. You can find ways to deaden the floor, but anything that soaks up water is always going to be a pain.