Find them here:Search the site SearchV.com weekend vote: What size violin did you start on? Starting as young as he did, Mozart had a fractional violin - but this was a rarity in the 18th century. Of course, if you started as an adult, you likely started on a full-size violin. It's been a while since I was a beginner, but I recall starting on a 1/2-size violin, just shy of my ninth birthday. What size violin did you start on?