Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for Baritone Guitar Conversions

D'Addarrio is such a great company.I wanted to convert a few of my electric guitars to baritone (add a next fatter string to a guitar and eliminate the skinniest string and you got a baritone... tuned to B E A D G C)D'Addarrio's Website has a string tension chart, so I was able to evaluate the Jazz Light Seven Set for use on my Baritone guitars.they work great... on a standard 24.5 inch scale guitar. In fact they were so firm, that I dropped the tune down a step, and the strings play more easily, and i got the baritones even lower... at A# F# G# C# F# B.Oh, it takes a bit of work. With a Fender Telecaster, I needed to fingernail file the Nut slots a bit wider all the way down. With a Fender Jazzmaster I needed to widen the Nut Slots simularly, as well as using a saw blade to notch the bridge for wider strings (and using folded sandpaper to polish the grooves).anyway, I could not have done it without D'Addarrio Jazz Sevens...