Throughout his career, he mostly wrote his own lyrics, but at times also used the words of well-known Sudanese poets like Fadlallah Mohamed or Mahjoub Sharif.

[2] Several times, his patriotic and critical songs evoked the suspicion of the military dictatorships of the day, and he was jailed by Nimeiri's regime in the 1970s.

In 1994, he returned to Khartoum and kept a low profile, despite his great popularity that led him to appear in concerts in the United Arab Emirates, Europe, China or the US.

[1][3] In his study "Framing Political Content in Sudanese Popular Songs", Mohamed A. Satti cites al Amin's song Raja' al balad (He returned home) as an example of allegiance of a Sudanese in exile and of his belonging to the nation, even after an absence of many years.

[4] - A more personal insight into his lyrics, speaking about domestic scenes that could have happened in any country, is presented in the song al jarīda - (The Newspaper) from his album Voice of Sudan, recorded after a concert in Berlin, Germany, in 1993.