Well, timbre is related with the envelope of the acoustic wave. The form of the wave will be received by your ear and then translated to electrical impulses to your brain. I think, that we are adapted to consider "continuous and smooth waveforms" as "nice", so timbre will be one of the first characteristics that your brain will analyze.
first complment her then you got to tell her you got bad news and tell her that her injury is to bad for her to come but she should still be aloud in practice for whatever this sport is after her injury fully heals