This pilot study investigates the impact of using mobile devices to facilitate the practising of scales and arpeggios. The AI application was designed by an engineer/musician in Hong Kong. This AI application enables students to practise, record themselves, view their mistakes and prepare for examinations based on the Associated Board of the Royal Schools of Music’s scales and arpeggios syllabus for five instruments (violin, flute, clarinet, trumpet and saxophone). This study (a) examines the progress of learners who use the application to practise scales and arpeggios; (b) observes how elementary learners perceive mobile practising in a virtual learning environment and (c) proposes a blended learning model that uses mobile practising with the support of AI. Copyright © 2020 The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.