Trenier died at his home in LA on Friday (August 5)
The soul singer highlighted the sociopolitical angles of his album in a rare TV interview this week
Singer also performs tracks from recent album 'Black Messiah'
The R&B musician will return to the UK after a series of dates during February
It will be reissued as a two disc, white vinyl collection on April 21
The event takes place July 1-4 in Poland
R&B singer performed 'The Charade' and 'Really Love'
Performance will mark D'Angelo's first television appearance since surprise release of 'Black Messiah' album