Type: Roundwound Material: 24K Gold Plated Gauges: 009/011/016/024/032/042 How would his hits have sounded, if Brian May had used conventional strings? He however chose the SOUND OF GOLD and Optima can be proud that these strings made a small contribution to Brian's great success and still do. The Brian May Signature is a set of strings tuned by Brian that was developed with and for Brian May. A highlight in rope making.