Music (psycholing.) ; Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Case study (language acquisition) ; Critical period (language acquisition) ; Alter (Einfluss auf Spracherwerb) ; Age (influence on language acquisition) ; Age of acquisition; AoA; Sensitive period (language acquisition) ; Second language acquisition (psycholing.) ; Case study (second language acquisition) ; Music (phonet.) ; Rhythm (phonet.) ; Akzent; Suprasegmental phonology; Prosodie; Prosodics ; Syntaktische Homonymie; Syntactic ambiguity; Homonymie (synt.) ; Homonymy (synt.) ; Ambiguity (synt.)