The evidence keeps rolling in.
from the abstract of this study:
Results showed that a 1-month laboratory music intervention focusing on rhythm learning enhanced 9-month-old infants’ neural processing not only for music but also for speech. Together, these results suggest that these enriched auditory experiences in infancy may improve infants’ general auditory pattern-detection skills and their sensitivity to phonetic information.
Source: Effects of enriched auditory experience on infants’ speech perception during the first year of life | SpringerLink