Part a is typicall called the "Torch." Part b is also related to the Torchwith some variation. Note
that Windsperger refers to Isolde's Impatience and the Torch by the single name “Liebesverlangen” or “Love’s
Demand” (Windsperger, p. 42). He labels them as such because
the two motives occur simultaneously in treble and bass voices. Additional
labels for the Torch are noted below.
Motive Labels
Treble part of “Liebesverlangen” or “Love’s
Demand” – (Windsperger, p. 42)
“Isolde’s
Ardour” – (Fischer, p.12)
“Love Call” – (Kufferath)
and (Kobbé, p. 123)
“Hoffnung, Liebeserwartung
(auch Leuchte bedeutend)” or “Hope, Love’sExpectation
(also means light)” – (Pfohl, p. 221)
“Ardour” – (Lavignac,
p. 297)
“Love’s Call” – (a
secondary motivic label by Lavignac, p. 297)
“Torch” – (Cleather)
