/LMAR=0/XLINE=10/FONT#0=METL/FONT#1=METLI/FONT#2=METS/FONT#3=MUS[HHA,LCS]/FONT#4=BASL35
␈↓ α≤␈↓␈↓ ε/67␈↓ 
l


␈↓"β␈↓ α≤␈↓␈↓ β}␈↓∧⊂⊗⊃L[0,%-.75]:N67XB.PLT[HHA,LCS]⊂⊗⊃␈↓




␈↓"β␈↓ α≤␈↓Figure 67a.  Bach, Invention No.4 in d (bars 7-45).
␈↓"β
␈↓"β␈↓ α≤␈↓␈↓ βd␈↓∧⊂⊗⊃L[%-.05,%-3.2]:N67FA.PLT[HHA,LCS]⊂⊗⊃␈↓















␈↓"β␈↓ α≤␈↓␈↓ α|The␈α∪location␈α∩of␈α∪the␈α∩pivot␈α∪(at␈α∩+)␈α∪is␈α∩arbitrary,␈α∪because␈α∩the
␈↓ α≤␈↓following␈α
twelve␈α
bars␈α
are␈α
based␈α∞on␈α
the␈α
descending␈α
form␈α
of␈α∞the␈α
␈↓&d␈↓)αβ
␈↓ α≤␈↓scale␈α--␈α
which␈αis␈α
identical␈αwith␈αthe␈α
␈↓&F␈↓)αβ␈αscale.␈α
 If␈αit␈α
seems␈αnecessary
␈↓ α≤␈↓to␈α∂specify␈α∂the␈α∂dual␈α∂function␈α∂of␈α∂such␈α∂progressions,␈α⊂the␈α∂following
␈↓ α≤␈↓method␈αis␈αsuggested.␈α The␈α␈↓↓retrospective␈↓␈αfunctions␈αin␈α␈↓&F␈↓)αβ␈αare␈αcircled
␈↓ α≤␈↓to keep them distinct from the earlier perceived ␈↓&d␈↓)αβ functions.
␈↓"β
␈↓"β␈↓ α≤␈↓Figure 64b
␈↓"β␈↓ α≤␈↓␈↓ βs␈↓∧⊂⊗⊃L[%-.2,%-1.5]:N67FB.PLT[HHA,LCS]⊂⊗⊃␈↓