How do you Write a ‘Catchy’ Tune?

Notes For What Makes A Catchy Tune Photo By Heather Fenoughty
So, you’ve been asked to write some music that’s ‘catchy’, ‘sing-able’ and ‘hummable’? Or you’re after it from your composer? This isn’t rare. A huge proportion of my career has involved writing music that is deliberately memorable. But what does a tune being ‘catchy’ actually mean? Aren’t all good tunes memorable? Or is it their ‘memorable-ness’ that makes them 'good'?