Any chromatic tuner will do the job, and you can get a really basic electronic tuner from any music store for between $50 - $100, or simply borrow one from a friend to get the job done! These tuners are incredibly common nearly all professional musicians or music teachers either own one or have a friend who owns one. If you don t have access to one, don t worry as I ve included a full set of sine waves (clear and clean tones) that you can use to tune the notes by ear. If you have a musical ear it is really easy to do it this way. Is my homemade instrument going to sound as good as commercially available instruments? I'm not going to suggest that you can build an instrument which will sound identical to the commercially available instrument, not with basic wood that you can get from the hardware store. However - have a listen to these samples, and you'll see that there is very little difference between them! Commercially Made Instrument (This ...