The June, 2014 issue of Wine Enthusiast magazine contains an article where they interview 6 celebrity winemakers, one of whom is Geddy Lee. Here's what Geddy had to say about the connection between music and winemaking:
Making music and winemaking are really quite different processes but I suppose that, at a point, both are dependent on craftsmanship. In music, after the initial inspiration occurs, the rest of a piece depends on your abilities and experience as a craftsman and this is largely what takes place in order for a winemaker to maximize what has grown in his vineyard.
You can check out the entire interview online at this location (thanks rolldaboz).