Complex sentence: The following year Johnson found work at the court of James I. A number of lutenists were employed at court, and Johnson may have specialised in the bass lute when playing in consort music.
Split into simpler sentences: The following year Johnson found work at the court of James I where a number of lutenists were employed. Lutes came in various sizes and Johnson may have specialised in the bass lute when playing in consort music.