An amazing video has emerged of a two-year-old identifying 45 music composers by looking at their pictures.

The footage, captured in Nashville, TN, USA, shows the toddler saying the surname of a composer every time his mum points to a picture of a musician.

''My son is 2-year old and he loves to learn and memorise,'' the filmer later wrote online.

''He has always been interested in looking at these placement mats and asking me questions about the people on them. He used to drive me crazy, especially on a busy morning demanding to tell him all the names on the mat instead of eating his breakfast.''

''One day I realized that he knows all the names by heart and recognizes each person based on the picture,'' she added.