B Suspended 2nd (Bsus2)
1+2+5
Notes in B Suspended 2nd
B (root)C#F#
Inversions
Same notes as B Suspended 2nd, with a different chord tone as the lowest note. Useful for smoother movement between chords instead of jumping around the keyboard.
Root position
B in the bass
1st inversion
C# in the bass (Bsus2/C#)
2nd inversion
F# in the bass (Bsus2/F#)
Play B, C# and F# together and you get B Suspended 2nd.
Suspended chords pull the third out entirely, so they land somewhere between major and minor rather than picking a side. Sus2 fills the gap with a major second sitting close to the root, which gives it an open, slightly hollow color. It's a favorite way to add movement to a strummed or arpeggiated part without changing the underlying harmony.