Does technical tape have to be really fast to show skills. Originally I was double tonguing pretty fast, but my trumpet teacher told me to single tongue it to make it sound smoother. Thing is, I cant single tongue that tempo (110 bpm) I start messing up. My audition tape is due in a few days. What should I do? Take it down to 104 bpm single tonguing? My teacher wants me to single tongue 110 bpm, but I cant. I haven't been practicing that way the last month, and switching to single tonguing now is difficult.