Hey y'all, I've been working on 4th string bar chords, and I'm a little confused about something. It may be common sense, but when a chord leter is followed by a flat(b) is that fingered with a major or minor formation? The chord in the exercise is Bb, so how is that played? I hope this makes sense, I'm still a beginner obviously. Thank you for any responses.
If the chord is just written with the flat designation (lower case b) as in, Bb or Gb or Eb, then it's a major chord. If the chord is intended to be minor then it will be written as such: Bb min, or Gb min. The flat or sharp (#) denotes the root or tonic of the chord. Descriptors like major or minor or diminished describe the relationships of the notes within the chord.

To play Bb on the fourth string just make the following combo on notes: Bb, D, and F. Bb is the 8th fret of the 4th string. D is the 7th fret of the 3rd string. F is the 6th fret of the 2nd string. And there is another Bb on the 6th fret of the first string.

have a good one