Here's a few scripts to show Biab nusicXML chords in Reaper:
ReaTrak notation event text to midi text marker.lua
ReaTrak delete existing midi markers and notation event text to midi text marker.lua
ReaTrak musicxml chords notation events to regions.lua

View: Toggle show media cues in items

remove the .mp4 and unzip

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Reaper-BiabXML-Chords.zip.mp4 (2.74 KB, 32 downloads)
Reaper-BiabXML-Chords.gif (315.89 KB, 94 downloads)