ABSTRACT Purpose To analyze the passaggio in voice range profile of choristers, by identifying fundamental frequencies and intensities, both change to high low registers, comparing them, types. Method 67 choristers participated, mean age 27.79 (± 7.50) years old, following types: soprano (n = 20), alto 17), tenor 15) bass 15). For data collection analysis, Vocalgram software (CTS Informática) w...