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THERE’S BEEN A REVOLUTION IN EFFECTS PEDALS IN RECEN T TIMES. HERE’S OUR PICK OF THE BEST FROM THE PAST FIVE YEARS – ALONG WITH EXPERT TONE ADVICE FROM TOP PEDALBOARD PROS...

First, a full disclosure: I asked four organisers of some of the most popular residential piano courses if they could put me in touch with former students who might be willing to share their experienc