Hi Phil,I find this works for me,the highs and lows of family finances can change dramatically,
I never charge for missed tuition with a genuine reason.I keep overheads to minimum,with free sheet music bespoke backing tracks.Entry into performing arts,and performance.With the economic situation at the moment,I encourage multi student tuition with reduced cost or free.
I realise not all teachers are in a position to work this way,but it really is rewarding when some students worthy of training would never have had that chance.