[LAU] Tangerine Dream

Hello all, With all the Linux audio tools around, is there a way to have the type of sequences/arpeggios like Tangerine Dream was using ? A simple example would be ZynAddSubFx's 'Sequence 2' patch. I wonder how Tangerine Dream were doing these sequences and arpeggios. Like for instance the beautiful sequenced synth right after the piano intro on 'Ricochet'. In those times they surely did not have powerful sequencers to store all of these for live concerts. They must have relied on some programmable arpeggio type of function. Is there a way to have such a flexibility to create similar things in Linux and if so, which tools ? Thanks.