Folker Magazine:
"Like the debut CD from 2008, the second album from Hannover’s 6-piece Irish folk band is a superb one. Excellent and rumbustious playing, multilayered arrangements of tunes and songs in the best rhythm’n’reel style, interspersed with dashes of other European and North American influences. Sue Sheehan’s voice is a fresh delight with every song."

Irland Journal:
"'On a Single Wing' is the second CD from this Hannover band – and is my No. 1. The song 'Flying on a Single Wing' from which the CD takes its title has been going through my head for days now. The material chosen is a personal selection, with detailed sleeve notes about the tunes and songs. An excellent album and beautifully designed by Eva Giovannini."

Folk World:
"The first tune 'Carillon' by Maìre Breatnach, gives its name to the opening set on the CD, this is followed with one from The Orkney Isles and the track finishes with a tune from County Galway. Flute and fiddle interchange to the beat of the bodhrán, guitar and bouzouki. The title song, by American Robin Batteau, is a gentle ballad, exquisitely sung, and Moccasin Shuffle a brilliantly played set of French Canadian tunes finishing with a piece from The Shetland Isles – highlighting the Emerald six playing music from across the folk world. 'Ladybird' is a wedding waltz by Michael Möllers, written for his brother and followed by a light-footed Scandinavian waltz. My favorite song is 'We Rigged Our Ship' by American songwriter Cindy Kallet, carried away on the wings of gorgeous unaccompanied four-part harmony – then the bodhrán sets the pace for a selection of thrilling tunes and the band sparkles with mighty playing. Another highlight is Carmol Taylor’s frivolous honky tonk song 'I Really Had A Ball Last Night', when the band shows off their versatility. Check out the music of Emerald and you’ll be hooked. Bravo, a great album."

Deutschlandradio Kultur:
"The singer is American Sue Sheehan, whose soft voice offers an elegant counterpart to the driving instrumentals on Emerald’s debut CD 'The Great Divide'. An absolutely wonderful first album."

Folkland Radio:
"CD of the week!"

Irland Journal:
"The tune sets evoke the endless energy of long session nights – a wonderful CD for all fans of Irish-American music."

Folk World:
"This musical gem from Hannover glitters from Irish green to the gold of the American great plains. The instrumental sets awaken fond memories of the DeReelium days. 'The Great Divide' is a fine piece of work and with this debut album, Emerald can take their place at the top of Germany’s Irish music scene."