Only set tempo markings in parenthesis when user provided a string like Allegro

engine/tempotrack.py

@@ -719,7 +719,11 @@ class TempoTrack(GraphTrackCC):
                     t = tempoItem["lilypondParameters"]["tempo"]
                     d = duration.ticksToLilypond(tempoItem["referenceTicks"])
                     upm = str(tempoItem["unitsPerMinute"])
-                    return  f"\\tempo \"{t}\" {d} = {upm} {skipString}"
+                    if t: #we have a custom string like "Allegro"
+                        return  f"\\tempo \"{t}\" {d} = {upm} {skipString}"
+                    else:
+                        return  f"\\tempo {d} = {upm} {skipString}"
+
                     #return  "\\tempo {} {} = {} {}".format(tempoItem["lilypondParameters"]["tempo"], duration.baseDurationToTraditionalNumber[tempoItem["referenceTicks"]], str(tempoItem["unitsPerMinute"]), skipString)
 
             raise NotImplementedError