olivier@U904-LOLIVIER:~$ mscore
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
I: caps.c: Dropping root privileges.
I: caps.c: Limited capabilities successfully to CAP_SYS_NICE.
initOSC 1 
Alsa_driver: stat = 00, xrun of at least    4.589 ms
Tie::layout(): no start or end
Tie::layout(): no start or end
Tie::layout(): no start or end
Alsa_driver: stat = 00, xrun of at least    2.844 ms
transposeTpc tpc 20 steps -1 semitones -2
  = step 2 alter 0  tpc 18
paste <<?xml version="1.0" encoding="UTF-8"?>
<StaffList tick="57840" len="1920" staff="12" staves="1">
  <Staff id="12">
    <tick>57840</tick>
    <StaffText>
      <style>Staff</style>
      <subtype>Staff</subtype>
      <track>48</track>
      <selected>1</selected>
      <text>Cup Mute</text>
      </StaffText>
    <Rest>
      <lid>719</lid>
      <track>48</track>
      <selected>1</selected>
      <durationType>half</durationType>
      </Rest>
    <Rest>
      <lid>721</lid>
      <track>48</track>
      <selected>1</selected>
      <durationType>quarter</durationType>
      </Rest>
    <Rest>
      <lid>6446</lid>
      <track>48</track>
      <selected>1</selected>
      <durationType>eighth</durationType>
      </Rest>
    <Chord>
      <lid>6447</lid>
      <track>48</track>
      <durationType>eighth</durationType>
      <Note>
        <lid>6448</lid>
        <track>48</track>
        <selected>1</selected>
        <pitch>64</pitch>
        <tpc>18</tpc>
        <Accidental>
          <subtype>sharp</subtype>
          <track>48</track>
          </Accidental>
        <veloType>user</veloType>
        <velocity>100</velocity>
        </Note>
      </Chord>
    </Staff>
  </StaffList>
>
makeGap 1/1 at 57840 track 44
remove Rest 4/4 at tick 57840 track 44
transposeTpc tpc 18 steps 1 semitones 2
  = step 3 alter 1  tpc 20
Erreur de segmentation