A method for mapping networks of spin-spin couplings via zeroquantum coherences has recently been proposed by Miiller (I). Its merit lies on the modification of the pulse sequence given by Jeener (2) for the suppression of chemical-shift modulation of the amplitude of the excited zeroquantum coherences, thus allowing a relatively uniform excitation. The Miiller sequence excites two-spin coherences (ZbZIX terms), longitudinal two-spin order (ZkrIIz terms), and y magnetization (Zky terms). Although the latter are suppressed with appropriate phase cycling, the two-spin order terms are not, so that the final 2D spectrum displays signals at F2 = UK, F, = (VK vL) and (YL. VK) arising from the ZbZIX term and at F2 = vK, F, = 0 from the Zk,Z,= term, and similar signals at F2 = vL. Making use of the flipangle dependence of the amplitude factors for the transfer from zeroquantum coherences to observable magnetization (3), either a SECSY-like spectrum (cross peaks at vL UK, VK and VK vL, vL, for detection pulses (Y 90”) the vK vL component of the zero-quantum coherence is preferentially transferred to transverse k magnetization, since the amplitude factor of the transfer to transverse 1 magnetization is smaller (3) by a factor u&(&/2). In spectra with a small dynamic range, the use of a read pulse near 135” will establish a difference in intensity of both transference processes sufficient that only the former one need