Generators Generator Electronics Switching Power Supply
Synthesizers Synthesizer Controls
Amplifiers Loudspeakers Resonances Horns
Horn Information
https://github.com/hasgluten/hasgluten/blob/master/src/app/pages/Layout.js#L161
https://developers.google.com/google-apps/spreadsheets/#fetching_specific_rows_or_columns
https://productforums.google.com/forum/#!topic/docs/nCupsqSo7UY
https://docs.google.com/spreadsheets/d/1H5yU3an5AZJNP1aJ9tVRepTgb5zNmTtEnHHuqjNL6jc/edit#gid=0