/4 width=7 by cpx_delta, cpx_ti/
|4,9: /4 width=1 by cpx_bind, cpx_beta, lsubr_bind/
|5,7,8: /3 width=1 by cpx_flat, cpx_tau, cpx_ti/
/4 width=7 by cpx_delta, cpx_ti/
|4,9: /4 width=1 by cpx_bind, cpx_beta, lsubr_bind/
|5,7,8: /3 width=1 by cpx_flat, cpx_tau, cpx_ti/