On 19 February, Edward progressed from the Tower to the Palace of Westminster - through throngs of supporters who held pageants and cheered on their new king. He even took the time to admire and laugh at a Spanish tightrope-walker outside of St. Paul's Cathedral.
A scaffold decorated in rich fabrics and cloth of gold had been erected in the abbey, where the coronation chair stood, awaiting Edward. Adorably, upon the coronation chair sat a black cushion to help raise the nine-year-old king when he sat upon it.
Archbishop Thomas Cranmer officiated the ceremony, and in his sermon he likened the young King Edward to the biblical Josiah, urging him to continue the work of the reformation in England. The standard twelve-hour coronation ceremony was cut to only seven hours, because of the 'tedious length of the same which should weary and be hurtsome peradventure to the King's majesty, being yet of tender age.' (W.K. Jordan, Edward VI: The Young King. The Protectorship of the Duke of Somerset (London, 1968), pp. 65-6).
It was a grand and exciting day in Tudor England, although a boy king was never preferred as a monarch, and there was a history of government corruption when a child king sat upon the throne (think Edward V and Henry VI as quick examples).
In any case, it was a big day, and details of the event were well-reported by chronicler Charles Wriothesley. Check them out in his writings, if you're able!