1. Piccolo: The piccolo is the smallest and highest-pitched member of the flute family. It is about half the size of a standard flute and plays an octave higher. The piccolo is often used in marching bands, orchestras, and jazz ensembles.
2. Alto Flute: The alto flute is a larger version of the standard flute and is pitched in G, a fifth lower than the standard flute. It has a mellower and darker tone compared to the standard flute and is sometimes used in classical music, jazz, and contemporary music.
3. Bass Flute: The bass flute is the largest and lowest-pitched member of the flute family. It is pitched in C, an octave lower than the standard flute and has a deep, resonant sound. The bass flute is often used in orchestras, wind ensembles, and jazz bands.
4. Contra-alto Flute: The contra-alto flute is pitched in E-flat, a major third lower than the alto flute and two octaves lower than the standard flute. It has a rich and warm tone and is occasionally used in contemporary classical music and experimental music.
5. Contrabass Flute: The contrabass flute is the lowest-pitched flute in the family. It is pitched in C, two octaves lower than the bass flute and three octaves lower than the standard flute. The contrabass flute is rarely used and is primarily found in contemporary classical music and experimental music.
6. Hyperbass Flute: The hyperbass flute is the largest and lowest-pitched flute ever built. It is pitched in C, an octave lower than the contrabass flute and four octaves lower than the standard flute. The hyperbass flute was created as an experimental instrument and is not widely used in musical performance.