Here is a description of all the various sizes of recorder:
Contra Bass in F
Although we don't have one (still waiting for the
lottery win!), the Contra Bass will descend another
five notes beneath the great bass, to F. Being 6 feet
tall, players usually stand to play the contrabass
(although they can sit with the folded box-section
instruments) As with the Great Bass, the Contrabass
has a noticeable delay between blowing and speaking
which the player needs to take account for, along
with a definite requirement for more air. As with the
other Bass instruments keywork is essential on this
large instrument.
Great Bass in C
This recorder is one octave lower than the tenor, so
its lowest note is C below middle C. Due to its size
there is a noticeable delay between blowing and the
recorder speaking, although not as pronounced as on
the Contrabass, players still have to allow for this
by playing slightly ahead of the beat. Like the Bass
in F, it always has some keywork to assist fingering.
Bass in F
This instrument is one octave lower than the treble
and its lowest note, therefore, is the F below middle
C on the piano. It is the most powerful of all the
Bass instruments, and is the highest pitched recorder
playing from the bass clef. It includes some keywork
to help fingering the increasingly large distances
between holes.
Tenor in C
This is one octave lower than the descant and so its
lowest note is middle C. It has lovely rich, mellow
tones and can happily be a solo instrument. It can
have several keys to help play the lowest notes.
Treble (Alto) in F
This recorder is often used as a solo instrument. The
lowest note of the treble is the F above middle C,
its range the same as the descant. It is the biggest
instrument not to commonly require any keywork on the
body.
Soprano (Descant) in C
The descant is the most well-known recorder, and is
the one most often used to teach children. The lowest
note of the descant recorder, that is the note played
when all the holes are covered, is the C above the
middle C on the piano. The range is two and a half
octaves.
Sopranino in F
The lowest note, that is the note played when all the
holes are covered, is the F an octave above the
middle C on the piano. The range is two and a half
octaves and is commonly used to add brilliance to the
overall sound.
Garklein-Flötlein in C
The smallest recorder with the longest name. The
lowest note, that is the note played when all the
holes are covered, is the C two octaves above the
middle C on the piano. The range is two octaves but
at the extreme it’s uncomfortable on the eardrums of
anyone standing close to you… Its best used for solos
or 'decoration' in full orchestration. This recorder
has a very prominent sound. As you can imagine, some
peoples' hands and fingers are just too big to easily
play this tiny instrument!