  High resolution spectra of five stars in the bulge globular cluster NGC 6528
were obtained at the 8m VLT UT2-Kueyen telescope with the UVES spectrograph.
Out of the five stars, two of them showed evidence of binarity. The target
stars belong to the horizontal and red giant branch stages, at 4000<T_eff<4800
K. Multiband V,I,J,H,Ks photometry was used to derive initial effective
temperatures and gravities. The main purpose of this study is the determination
of metallicity and elemental ratios for this template bulge cluster, as a basis
for the fundamental calibration of metal-rich populations. The present analysis
provides a metallicity [Fe/H] = -0.1\pm0.2 and the alpha-elements O, Mg and Si,
show [alpha/Fe] ~ +0.1, whereas Ca and Ti are around the solar value or below,
resulting in an overall metallicity Z ~ Zsun.
