As a guitar duet.
Spent a day messing around with chord shapes and came across this unusual beast.
Online chord analyser programmes clock it as a C11 chord with a Bb root. There are other possibilities, such as a Bb7 6/9 without the third and with an added sharp eleventh. Whatever, the chord sounds lovely.
Exploring chords on a guitar is more difficult than on piano because there are fewer fingers to play with and fingering some chords is hard physical work. The lost chord is almost impossible to play using open strings and might be easier to finger as a barre chord in the fifth position.
Adding the lost chord to a C-Am-C11-G progression creates the basic harmony. After that, its away we go.
Length: 3' 18"
Track 1: steel guitar
Track 2: nylon guitar
Genre: Pop, Rock