I just found out OpenUTAU's default resampler has support for the Tension flag.
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|-Credits-|
Original: Akumi || youtu.be/PmKkslHh6wE
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UST: ミキナリア || MikiNaria
Mix & Master: @fluffykats  
Vocal: Invader Dib Membrane & Zim (CVVC-Jinriki)
Voice Actor: Andy Berman & Richard Steven Horvitz
VB Configuration: @fluffykats & @staesik  
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『Dib Membrane』 Dull!! 【Jinriki UTAUカバー】

Sub account, mostly for posting Jinrikis

Currently-complete - CV/VCV/CVVC
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V1:
Invader Zim
Dib Membrane
V2:
GIR
Invader Zim
Dib Membrane

work-in-progress:
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Professor Membrane (90%)
Tak (60%)

Up-next:
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Tallest Red & Purple

Retake (Paused)
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Gaz Membrane (5%)

『Dib Membrane』 Dull!! 【Jinriki UTAUカバー】

Fritzie