A german computer programmer, handpan enthusiast, and longtime community member named Lino saw a need for a tuning program and took it upon himself to create one. Within a few months he had proof of concept and only a few months after that he had a working program. I am of the opinion that this program represents a quantum leap in regards to tuning related software especially when working with tuned steel.
I was highly aware of its power before I became a tuner but it wasn't until I picked up a hammer that its began to reveal its true potential. While learning to tune I quickly realized that Linotune could be more than a tuner, it could be a teacher. It would give me immediate feedback after each hammer stroke showing me EXACTLY what happened to each partial. It educated both my hands and my ears and helped bride the gap between the two.
I have been accused of being a 'new-gen' tuner as I don't pay too much attention to the strobes and their directional movement as I tend to watch the +/- cents. I turn my strobe movement to ÷5 so I am not distracted by the rapid movement. As a 'new-gen' this means the Linotune Laser projection system doesn't work for me as it projects the strobe action. If you aren't a 'new-gen' tuner I highly recommend the laser so you can rid yourself of tuner's neck!
My main window features the partials 1:2:8 /3:3 or fundamental:octave:compound 4th:compound 5th. I keep the 4th in there as a check point for when I am rough tuning and for when I am working on instruments that have a 3rd partial other than a 5th. If they do I will change that band to whatever the 3rd partial is.
I use the slave function for my second window. It is set to start a triple octave above the primary window's fundamental and shows a 2nd, min3rd, maj3rd, 4th and 5th above that. This allows me to keep an eye on any extraneous partials or 'shoulder tones."
I also use the slave window to tune ports as their relationship tends to fall within a 5th of their fundamental.