In a normal guitar game after a certain number of notes, 10 consecutive hit notes will raise the multiplier by 2; 20 consecutive notes by 3; and 30 or more consecutive notes by 4. If you missed a note/ overstrum once, the multiplier goes back to 1. There are about 1000 notes placed in a song - and James Coulter nearly perfected it except that in the halfway, he missed a note. How much was his score?
NOTE: Each note hits by 5 points.