Table 5.

Coding examples.

First-level node	Second-level node	Third-level node	Material source count	Interviewer answer
Outcome	Skill Improvement	Improve the pitch	5	“…… And then in the past four months I think my pitch and rhythmic stability has improved very much.” (This statement indicates both improved pitch and rhythm, so it was coded as both “improved pitch” and “stabilized rhythm.”)
		Stable the rhythm	4	“…… It helps me to remember the whole framework of the music when I’m doing the music processing in post, and to play along with the beat without changing the overall framework, rather than changing the tempo haphazardly, this is the highlight where I think it’s helped me a lot.”
		Improved sight-reading ability	1	“…… And now that I’m playing other pieces, I feel significantly more relaxed, I can read music faster, and I’m able to memorize the music quickly when auditioning …”