“Hey Jude” by The Beatles begins with soft gold and light blue tones. Paul McCartney’s voice is a smooth dark brown. The drums create low, bubbly mountains of spheres that rise as the song progresses. When McCartney screams, his voice adds scribbly green. The colours of the harmonies from voices and instruments mesh well, creating a smooth, well-organised calamity of bursting colour.This is how Melissa McCracken experiences every song she hears — in colours, shapes, and textures. It’s called synesthesia, a condition in which the stimulation of one sense triggers the simultaneous and involuntary stimulation of another. In other words, McCracken sees sounds in colour. With every song she hears, she gets her own personal light show. And then she paints it.McCracken, 25, began painting songs when she was 18, while listening to a friend play the guitar.“It didn’t cross my mind to incorporate synesthesia into my artwork until I began to notice people’s interest in the condition,” McCracken said. “After explaining it for years, it suddenly occurred to me it would make more sense to show it rather than to describe it.”Each instrument, rhythm, and beat brings its own colors, textures, and shapes. According to McCracken, acoustic songs tend to be muted, without much dimension, while country songs fill her vision with brown and mustard yellow. Harmonies create melting colors, while consistent sounds, like the beat of a drum, create pulsating visuals that appear and disappear throughout the song. Adele’s "Send My Love (To Your New Lover)” and Justin Bieber’s “What Do You Mean” both carry bubbly spherical shapes, while other songs carry more unexpected visuals — ones McCracken doesn't always enjoy seeing.“In Salt n Pepa's ‘Whatta Man,’ the part where she raps ‘See other guys that I've had, they tried to play all that mac s@*! / But every time they tried I said, 'That's not it'' is spoken and comes in as a dirty orange-ish brown that doesn’t match the vibrant sunset colors of rest of the song," McCracken says. "It makes me hate those three seconds of that song.”Those with synesthesia have no control over when it happens or what the stimuli will be, and the associations they have do not change over time, creating a very strong correlation between the condition and memory.