Possible Clues:

• One of three at the same birth
• Group of three notes
• Three-note grouping
• Not the only baby in the group to create hindrance at end of journey
• One in an extra-large baby carriage, perhaps
• One of several arriving together seen as impediment on outing
• Poor service on tour leads to a number of notes
• Handful of notes could provide travel permit
• Set of three things
• Common musical grouping