Https://play.google.com/store/apps/details?id=com.ovelin.guitartuna
sau asta
https://encrypted-tbn1.gstatic.com/......?/shopping
Eu am chestia aia electronica, Selectezi corzile, si cand acordezi coarda respectiva, se face ala verde. daca esti prea jos sau prea sus, iti arata.
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