Tetragrammaton Records had been active only for a year, but was on the brink of bankruptcy in the US. Its initial solid financial foundation had been quickly eroded by expensive promotional campaigns and by failed commercial strategies. Deep Purple were the label's most successful artist, but the band had not been able to produce another hit single like "Hush" and their latest release "Emmaretta", out just in time for their second US tour in April 1969, was also largely unsuccessful and failed to affect the US charts. The label's financial distress caused a delay in the printing of "Deep Purple", which was released in the US only on 21 June 1969, after the band had returned home having completed their US tour.