Kate Rusby uses an alternate guitar tuning, Double Dropped D (DADGBD) on her beatiful song, Who Will Sing Me Lullabies. 

When I performed the song in SATB form with CSI:Halifax Community Choir I accompanied the pianist on guitar but in standard tuning. I didn't like the sound and promised myself that I would learn the DAGGBD version someday.

So recently I did this arrangement in Musescore Studio to help develop skills.  I varied the tempo, added drums,  Bass guitar and Sax emulations via MuseScore 4, EZ Drummer and EZMix
My Guitar & Vocals were recorded into Cockos Reaper DAW via condenser mic and Presonus Studio 24 interface.