So prayer beads aren't meditation? Indian traditionalists are out. Walking isn't, so zen is out. Chanting isn't, so.i guess all bhuddism is pretty much not ok. Maybe there is no true meditation.
It is ok to be focused and mindful with different aids. Always has been. There are self focused (mindful) and also self-abnegating traditions, and all count.
No harm to.me if others have a different way. If music, or chants, or gardening, have at it.