Leo and his friends are 16-year-olds and are all learning to play the acoustic guitar. Some of his friends are studying written music theory and some are practising chord transitions for their practical grading exam. Maya passed both the theory and practical exams on her first attempt, whilst Sam failed his first and second attempts at the written theory exam.

Leo enjoys watching professional rock concerts online and his favourite lead guitarist won a major music award last year. Leo loves performing at local open mic nights, where his mother encourages and praises him warmly. He recently won a local youth talent contest. Leo took his practical guitar grading exam, but he failed his first attempt due to playing the songs much too fast.

Until he can retake his exam, Leo is practising duet pieces with Maya. Maya keeps forgetting the chord sequences of their duets, so she has to use a digital chord-sheet app on her tablet to guide them.

Evaluate the extent to which human behaviour, such as the ability to learn and perform a musical instrument, can be explained by biological psychology.

You must make reference to the context in your answer.