4D Sing-Along 2.1.0

The 4D Sing-Along App presents a sophisticated tool for vocal practice and ensemble preparation, offering features that accommodate musicians seeking to refine their singing abilities. This application provides the capability to listen to individual choral parts at varied tempos, complemented by high-quality instrumental backing tracks. Users can track their progress and engagement by earning points through accurate singing, and compare achievements via leaderboards that include global rankings and peer assessments within a social framework.

Key functionalities include independent volume control for each SATB part, instantaneous adjustment of playback speed and transposition, and real-time chord detection feedback, facilitating detailed analysis and practice. The app boasts a comprehensive library of over 3,000 pieces and allows users to add preferred selections to a personalized favorites list. Additional features enable users to request repertoire through the 'Music on Demand' service, share their practice sessions via FaceTime in group calls, and access unlimited usage through subscription plans.

Subscription options are provided on weekly, monthly, and annual bases, with automatic renewal mechanisms unless explicitly disabled by the user within 24 hours prior to the period end. Billing is processed through the iTunes account, and managing subscriptions or canceling auto-renewal is accessible via account settings. Any unused trial periods are forfeited upon purchasing a subscription where applicable.

For inquiries related to billing or subscription management, users are advised to contact Apple Support. Repertoire requests can be directed to [email protected].

• Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Privacy Policy: https://4dpianoapp.com/policy