Having scored 11 goals prior to this game, the Nigerians were widely expected to run roughshod over the team which lost 4-0 to Ghana in their final group game two days earlier, but the Burkinabes were in no mood to give out any more presents and pushed the Nigerians hard.
Regulation time finished with neither side able to find the net, and the game went into extra-time.
The first half of extra time was as cagey as the preceding 90 minutes and it took a swift and decisive counter attack launched by defender Ike ThankGod to swing the game.
The Burkinabes won a free-kick just outside the Nigeria area, and as the well struck effort came off the Nigeria cross bar, Heartland defender Ike picked up the ball and loped into the opposition half.
Musa kept pace with him and as the defender swept the ball into his path, the Kano Pillars man rifled in a daisy-cutter from 20-yards that skimmed its way across the goalkeepers and into his left post.
Nigeria moved through to the final, while Burkina Faso awaits the losers of the second semifinal between Ghana and Senegal. That game was originally due to be played before the Nigeria game, but had to be moved as the South African Under -17 team women's team trained on the pitch for their allotted hour before tomorrow's World Cup qualifier against Nigeria.
Nigeria Line-up: Akpan Bassey, Suswan Terna, Mutiu Adegoke, Reuben Gabriel, Ike ThankGod, Promise Onuh, Ahmed Musa, Solomon Okpako, Uche Nwofor (Eugene Salami 90), Bartholomew Ibenegbu (Chinedu Ezimorah 115), Gbolahan Salami (Ejike Uzoenyi 55)