Solution 1: Get a line of interest-free credit with no fees
Want to way to pay for your tickets now and pay them off without incurring interest? You can consider applying for a 0% purchase card with no annual fees. These cards offer you a promotional rate of 0% p.a. interest on purchases for a certain period of time, some for as long as 13 months. This essentially gives you an interest-free line of credit and a way to pay off large purchases, like your Splendour tickets. They key is to budget properly so you can pay off your debt before the interest kicks in.
After you pay back your debt, you can simply hold onto the card to use in emergencies – if it charges no annual fee then it won't cost you anything to hold unless you use it.