WARNING ! If you have perfect pitch, do not listen to more than the first 20 seconds for it will make you ill, as it did me. Yesterday, I was working as usual; composing/ arranging music for various ensembles when for no apparent reason, this happened. Listen at your own discretion-   I have used click tracks for years when recording ensembles but that day was different. Oh… so different. For those cursed with perfect pitch, you know what I mean when I say that I couldn’t listen to the whole recording without losing my lunch. If you really want…