A comprehensive weekly mentorship breaking down the phonetic differences between Central Catalan and the Barcelona dialect (barceloní). Each week features portfolio-ready case study breakdowns analyzing real speech samples, vowel reduction patterns, unstressed vowel neutralization, and the distinctive /a/→[ə] and /e/→[ɛ] shifts that define barceloní. Build a linguistics portfolio documenting your mastery of these dialectal contrasts through structured analysis exercises, IPA transcription practice, and comparative phonology drills.