Mesoscale dynamics are a fundamental process in space physics. but fall within an observational gap of current and planned missions. Particularly in the solar wind. measurements at the mesoscales (100s RE to a few degrees heliographic longitude at 1 au) are crucial for understanding the connection between the corona and an observer anywhere within the heliosphere. https://www.roneverhart.com/Turbosound-TS-18SW700-8A-18-Low-Frequency-Loudspeaker-p31480/