Page 84 - Glasbenopedagoški zbornik Akademije za glasbo v Ljubljani / The Journal of Music Education of the Academy of Music in Ljubljana, leto 7, zvezek 16 / Year 7, Issue 16, 2011
P. 84
SBENO-PEDAGOŠKI ZBORNIK, 16. zvezek
Figure 5: ALF under F5 with three leaps downwards
(Biffio 2009)
The figure above shows more than one ALF on a stopped note F5. On the
bottom right hand side, one can see ALF on the third level below the stopped note
with an instable pitch, drifting upwards.
Figure 6: ALF under F5 with change of bow bridge distance towards the
fingerboard
(Biffio 2009)
This figure indicates a change in bow bridge distance on ALF. The
frequencies are heightened with the bow shifting towards the fingerboard. Once
one of the ALF levels is reached, the deviations of pitch are in a microtonal or
tonal range. A frequency glissando is possible.
Being a cellist himself, Maierhof is probably the most prominent composer
writing ALF for cello as well as for string quartet. And still, the effect of jumping
intervals beneath the stopped tone was already used in the 1990s by other
composers e.g. Daniel N. Seel in Skordaturen II (1992-94). He notes the
ALF-levels as arrowheads.
84
Figure 5: ALF under F5 with three leaps downwards
(Biffio 2009)
The figure above shows more than one ALF on a stopped note F5. On the
bottom right hand side, one can see ALF on the third level below the stopped note
with an instable pitch, drifting upwards.
Figure 6: ALF under F5 with change of bow bridge distance towards the
fingerboard
(Biffio 2009)
This figure indicates a change in bow bridge distance on ALF. The
frequencies are heightened with the bow shifting towards the fingerboard. Once
one of the ALF levels is reached, the deviations of pitch are in a microtonal or
tonal range. A frequency glissando is possible.
Being a cellist himself, Maierhof is probably the most prominent composer
writing ALF for cello as well as for string quartet. And still, the effect of jumping
intervals beneath the stopped tone was already used in the 1990s by other
composers e.g. Daniel N. Seel in Skordaturen II (1992-94). He notes the
ALF-levels as arrowheads.
84
