Rallentando, and the awfulness of anti-virus software

Since I was a child, I&rsquo;ve been playing the French Horn . I still play, and I take it quite seriously. I&rsquo;m lucky enough to play with some good ensembles, and I perform many concerts each year. When learning difficult music, I often practise with a metronome . A metronome is a device that clicks or beeps regularly. You can set how often it clicks; for example you might set it to click 80…