SATB labels organize choral parts; solo voice categories describe individual instruments more broadly. The same singer can therefore receive a practical choir assignment that differs from a finer classical category.
Compare the systems
Choose a view, then place a sustained range over the reference bars.
SATB describes choral parts. Fach describes opera-role demands; neither can be assigned from range endpoints alone.
Questions and limitations
What is the difference between SATB and Fach?
SATB is a four-part choral layout: soprano, alto, tenor, and bass. Fach is an opera-role system with finer lyric, dramatic, and weight distinctions. The chart visualizes sourced reference ranges, but a real Fach assignment also needs tessitura, timbre, agility, passaggio, stamina, and repertoire.
Can vocal range alone determine my voice type?
No. Range is useful evidence, but classical classification also considers tessitura, timbre, passaggio, vocal weight, training, and repertoire. This tool therefore gives an estimate and shows borderline matches instead of presenting a range-only result as a professional diagnosis.
Why does the test ignore very brief notes?
A microphone can mistake breath, room noise, or a harmonic for an extreme pitch. A note must remain clear and stable for at least 300 milliseconds before it changes your result, which favors notes you can actually sustain.