* Pretty
picture of Apollo's lyre from the Delphi kylix.
* Sound
based on a sample of a lyre with flax strings built by Susanna
Rühling; samples of the first overtone may be accessed through
modulation wheel or panel switch.
* The
intonation of each white key on a midi keyboard may be set, independently,
to any pitch between a fifth above and below 440Hz. These may be accessed
by a midi controller, being optimized for the Midiman Oxygen 8 keyboard.
Individual meters display value in both cents and Hz.
* The
ratio between each pair of strings is displayed on a 7x7 matrix, and
is recalculated continuously as individual strings are adjusted.
* An oscilloscope
which may be adjusted for amplitude level and time, and can take snapshots.
* Toggle
between equal temperament and microtonal settings.
* A synecheia
('continuity') function can automatically set the pitches of the upper
strings to either a fifth (diazeuxis) or a fourth (synaphê)
from the lower tetrachord.
* A midi
keyboard may be constrained to the same seven pitches, regardless of
the octave played. Thus one may finger a melody an octave or greater
in scope (as often occurs in the Greek fragments), while the actual
pitches sounded will be limited to seven.
* A series
of 13 switches transposes the overall tuning up or down by semitones,
to simulate the Aristoxenian tonoi.
* Presets
of all tunings known from ancient Greek theorists (Philolaus, Archytas,
Aristoxenus, Eratosthenes, Didymus, Ptolemy).
* Lowpass
filtering with emphasis control. ADSR envelope generator.
* Toggle
between lyre and aulos samples. Saw and sine wave oscillators allow
a more striking and audible demonstration of harmonic and resonant relations.
* A separate
lamp lights as each of the seven strings are struck.
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