Buying a product you get access to the promotion (link).
After payment, you will be given access to subscribe to Yandex.Plus (Yandex.Music) for 1 year for 990 rubles.
The subscription can be activated for both new and old accounts
Your subscription must be inactive at the time of product activation
After registration, turn off auto-renewal of the subscription, in order to avoid charging the full payment, after 1 year