Sorry - no concerts on Mars

First audio recorded on Mars reveals two speeds of sound

The study confirmed for the first time that the speed of sound is slower on Mars, traveling at 240 meters per second, compared to Earth's 340 meters per second. This had been expected because Mars' atmosphere is 95 percent carbon dioxide—compared to Earth's 0.04 percent—and is about 100 times thinner, making sound 20 decibels weaker, the study said....

(Another scientist said this slowness is expected "just because it's Weir playing.")

...They had discovered there are two speeds of sound on the surface of Mars—one for high-pitched sounds like the zap of the laser, and another for lower frequencies like the whir of the helicopter rotor. This means that human ears would hear high-pitched sounds slightly earlier.

"On Earth, the sounds from an orchestra reach you at the same speed, whether they are low or high. But imagine on Mars, if you are a little far from the stage, there will be a big delay," Maurice said.

"All of these factors would make it difficult for two people to have a conversation only five meters (16 feet) apart", the French CNRS research institute said in a statement.

https://phys.org/news/2022-04-audio-mars-reveals.html