By now I’m sure you’ve guessed that I have a sizable digital collection of rare Brazilian bossa nova albums from the early 1960s, when the new genre was at its peak. Collecting that period is one of my many obsessions. If I were to blindfold you and lead you into a used record store, where I placed your hands on albums in a bin of Brazilian LPs released between 1962 and 1966, you could pull out as many as you wanted, take them to the cashier and you’d be happy with all of them at home…