The only known work by Cristóbal Tello mentioned by González Marín is a "Kalenda Nativitatis D.N.J.C." (1587), 5 vv, at E-Zac, published by P. Calahorra, Obras de los maestros de las capillas de música de zaragoza en los siglos XV, XVI y XVII (Zaragoza: Instituto Fernando el Católico, 1984), pp. 67-71. The work attributed to Tellez in E-MO 2991 is hitherto unknown; the presence in that manuscript of works by Robledo and, especially Tellez, a kleinmeister active in Zaragoza, suggests that the manuscript comes from Zaragoza.