This article examines the impact of analysis teaching on performance by documenting the progress of 12 students who took part in an advanced undergraduate class in music analysis. Each class participant was asked to keep a diary of their performances, both during practice time and in instrumental lessons, and these are documented and analysed. Finally, the students were given oral viva voce examinations. The data from this short qualitative study shows a variety of results that illustrate the extent to which individual students react to the teaching of music analysis in different ways.