His Majesty King Bhumibol Adulyadej of Thailand (1927-2016) was born in Cambridge (Massachusetts, USA), but he received his school education in Switzerland. There (still being a Prince) he received his first musical education. He started to play the clarinet when he was ten years old. Living in Europe in the forties of the Twentieth Century, when jazz was very popular everywhere, he also developed a liking for this music, and it should not be considered surprising that his first compositions were strongly influenced by jazz music.
His first composition, the Candle Light Blues, is written completely according to the blues sequence of chords. Also some other early compositions are typically blues sequences. Listen to two examples: