‘Sky Still Blue’ shows the benefits of Walker’s continual tweaking of his sound and it’s paid off in this completely solid album of roots music.

Enter bassist/vocalist Glenn Hughes and vocalist David Coverdale.

‘Boom Crane’ doesn’t push up against the boundaries of jazz, nor does it seek to, but its clever, impish fun is contagious.

A loose and lively affair, ‘On The Blue Road’ emphasizes the dynamics of democracy.

Here’s a voice so entrancing that it delays my processing of the delivered lyrics.