The Chord Search feature needs improving.
For example I simply typed Em7 as shorthand for E minor 7 chords and the search results didn’t show the right result. I had to type “E min7” to get the expected result.
I this example - taking note of no space after the ROOT - and also recognising lower case m as minor and M as major are two common shorthand conventions in lead sheet notation.
The algorithm needs to be more forgiving as to how chords are entered to take in all the typical ways such things are entered. It would be good to look at how Band In A Box and iReal Pro does things.