Big doubts that H. Last is James Last.
For me they are Alfred Hause recordings with Hansi as arranger
01 Blue Tango - Alfred Hause (Album Strictly Dancing ''Tango'' (LaserLight 15 340 DE 1992)
02 Blue Tango - H. Last ?
03 Tango Of Roses - Alfred Hause (Album The Best Of Alfred Hause (Polydor POCP-1641 JP 1997)
04 Tango Of Roses - H. Last