-Any unused portion of trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
-Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
-Please kindly note that All recurring subscriptions will auto-renew unless auto-renewal is turned off at least 24 hours before the end of the current period.
Besides, no matter you are a newbie or a master, almost all of what you need is all-in-one this app: tuner, chords, courses, practices, tabs, metronome, etc.
-Every new user will be entitled to a 7-day trial period.
*Prices are equal to the value that "Apple's App Store Matrix" determines is the equivalent of the subscription price in USD($).
No matter you are a beginner or advanced, or just require a quick-learn course, you will find the course that best for you.
-Payments will be charged to your iTunes account at confirmation of purchase.
· Teaching mode: segmented practice for memorizing effectively and quickly, make learning more enjoyable.
#Other parameter#: Pitch(A4), frequency(Hz), temperament, notation, etc.