This is a sample skill to have a kind of hands-on on the development of Alexa skill set. This skill will basically play a requested node with the correct pitch.
Try saying the invocation name "Tune my guitar" and followed by requests like "play a low d", "can I get a high e", etc. It doesn't have any special hardware or software requirements and needs no display device since this is a voice-only skill.
The skill doesn't demand any personal information of the user and doesn't have any in-skill purchase. There are no privacy policies applied to this skill as such. The creation of this skill is a followup of the online tutorial by one of the Amazon Alexa expert Andrea Muttoni.
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