"Mezzo-soprano Amy Maude Helfer sounded gorgeous singing ‘Silence’ or ‘Shtillkayt.’"
- Parterre Box, 4/2023, A Concert for Sugihara with New York City Opera at Carnegie Hall

“… this is the best ‘Night Music’ I have seen in quite a while… What you need, in short, is a cast that can act as well as it sings, and vice versa. Union Avenue has assembled just such a cast… One sign of a solid show is the presence of first-rate performers in even the smallest roles. As the free-spirited and flirtatious maid Petra, mezzo Amy Maude Helfer brings an unusual touch of sadness to the final line of ‘I Shall Marry the Miller’s Son.’ It’s there in the music, but I don’t recall hearing it before… the bottom line is that it has been over a decade since I have seen a professional production of ‘A Little Night Music’ and longer than that since I have seen one that was so completely right in so many ways. This is a ‘must see’ for anyone who loves musical theatre of any kind.”
- StageLeft, 8/2022, A Little Night Music at Union Avenue Opera

“Amy Maude Helfer sings Petra, the earthy (indeed horny) maid. Glowing with seduction, she plays with Henrik, then drifts to Frid, the butler. Late in the show she nails the cynical solo, ‘I Will Marry the Miller's Son.’”
- BroadwayWorld, 8/2022, A Little Night Music at Union Avenue Opera

"She so thoroughly embodies this character... Amy Maude Helfer is coy in one mode, devilishly complicit in another, with a female swagger that boldly asserts her persona... able to take [her character] onto a level that simply makes you love theater."
- Big Island Music Magazine, 7/2018, Sweeney Todd at Hawai'i Performing Arts Festival

"Amy Maude Helfer's deft Nancy registered... strongly..."
- Opera News, 4/2015, Albert Herring at Bronx Opera

“As Petra, the Egermans’ maid, Amy Maude Helfer is smart, cheeky, and a sprightly soloist in ‘The Miller’s Son.’”
- HEC St. Louis, 8/2022, A Little Night Music at Union Avenue Opera

”Amy Maude Helfer lent a plangent mezzo to Iolanthe’s entrance solo, ‘With humbled breast,’ and dramatic plea to the Lord Chancellor, her husband, on Strephon’s behalf, ‘My lord, a suppliant at your feet I kneel … He loves! If [in] the bygone years.’”
- Q onStage, 10/2019, Iolanthe at Kaye Playhouse

"… the performance was musically top-notch… singers who are among the very best in town. The leads were aptly cast… Amy Maude Helfer made a moving Iolanthe, the titular fairy…”
- Forbes on Film & Footlights, 10/2019, Iolanthe at Kaye Playhouse

"Amy Maude Helfer was a wry, sly, and stylish Phoebe."
- The New York Times, 1/21/2013, The Yeomen of the Guard at New York City Center

“Miss Helfer has an intriguing near-contralto that might be impressive in serious music, and a mouth made for sarcastic asides; she deployed both of them well.”
- Parterre Box, 12/2019, The Mikado (Re-Imagined) at Kaye Playhouse

"This concert, which took place in the College of New Jersey’s Kendall Theater and conducted by Boheme Opera music director Joseph Pucciatti, drew extensively from Bernstein’s opera Trouble in Tahiti. Leading these excerpts vocally was mezzo-soprano Amy Maude Helfer, who consistently maintained a saucy attitude onstage and good control over a disjunct vocal line.”
- Town Topics, 12/2020, Boheme Opera NJ’s Virtual “Unique Broadway”

”In admirable contrast, Ms. Amy Maude Helfer’s demeanor goes a long way in making Iolanthe’s status as the mature parent of a 24 year old quite acceptable. She is a lovely Iolanthe, standing out among the pert fairies with a seriousness that is obviously due to lost love and the cares of motherhood. Vocally, Ms. Helfer earns high marks, especially in Iolanthe’s plea to the Lord Chancellor ‘My Lord, a Suppliant at Your Feet.’”
- Savoynet, 10/2019, Iolanthe at Kaye Playhouse

"Amy Maude Helfer impressed with a creamy mezzo sound as Pitti-Sing…”
- Palm Beach Arts Paper, 3/2023, The Mikado on tour

"Amy Maude Helfer as... Pitti-Sing stole all of her scenes with her wry delivery..."
- Theatre Scene, 1/2017, The Mikado (Re-Imagined) at Kaye Playhouse

"Amy Maude Helfer's gorgeous voice stood out in Tessa's aria 'When a merry maiden marries.'"
- Classical Source, 5/2015, The Gondoliers at Skirball Center for the Performing Arts

"As is often the case with Winter Opera, there were some truly fine voices in this cast, with mezzo Amy Maude Helfer leading the pack as a completely engaging Phoebe. She displayed a fluid, smooth voice and impressive acting skills. "
- KDHX.org, 11/2015, The Yeomen of the Guard at Winter Opera Saint Louis

"Amy Maude Helfer sings Phoebe. (She has sung the role twice before-with the wonderful New York Gilbert & Sullivan Players.) This lady has a gorgeous voice, she's beautiful, and she has a lovely sense of how to handle Gilbert and Sullivan."
- BroadwayWorld, 11/2015, The Yeomen of the Guard at Winter Opera Saint Louis

"The performances are earnest and truthful, filled with specificity and sung gloriously... Standouts are Amy Maude Helfer, whose creamy rich mezzo gives Nancy warmth and sincerity..."
- StageBuddy, 1/2015, Albert Herring at Bronx Opera

”The show’s sensational cast includes…. mellifluous mezzo Amy Maude Helfer as adventurous Pitti-Sing.”
- Going Places Far & Near, 12/2019, The Mikado (Re-Imagined) at Kaye Playhouse

"Mezzo-soprano Amy Maude Helfer was pert and vivacious as Melissa..."
- Theatre Scene, 5/2016, Princess Ida at Skirball Center for the Performing Arts

"The couple of young lovers was downright appealing... mezzo-soprano Amy Maude Helfer was a lovely Nancy... perky and good-hearted..."
- Classical Music Rocks, 1/2015, Albert Herring at Bronx Opera

"Amy Maude Helfer lent her clear mezzo-soprano to the role of the frustrated Phoebe..."
- Ladue News, 11/2015, The Yeomen of the Guard at Winter Opera Saint Louis

"Secondary roles provide some of the richest opportunities in the Savoy canon, which the players are always keen to seize.... Amy Maude Helfer... did vibrant work..."
- The New York Times, 1/6/2014, Patience at Symphony Space

"Darling Amy Maude Helfer made her every appearance as outlandish as the oversized three-cornered hat she wore.  She was able to hide from the Count and when discovered, create the 'so what's the big deal' attitude... And the singing!... Amy Maude has the great 'Non so piu' and ['Voi che sapete'] to show off her prodigious pipes."
- Oakwood Register, 4/10/2013, The Marriage of Figaro at Dayton Opera

"After intermission, the Phoenix Symphony Chorus, conducted by Thomas Bookhout, sang... a rousing performance of Haydn's well-known 'Lord Nelson' Mass... All four soloists were excellent..."
- New York Concert Review, 5/2015, Lord Nelson Mass at Carnegie Hall

"There were plentiful highlights... Amy Maude Helfer's dusky mezzo sang the charms of 'Barney O'Flynn,' Irish brogue and all, and several other chestnuts."
- Forbes on Film & Footlights, 11/2014, Art is Calling For Me with Victor Herbert Renaissance Project Live

"The singing in the New York Gilbert and Sullivan Players’ The Yeomen of the Guard, at New York City Center, may be its greatest asset... winningly sung by a strong cast... and there is sturdy support-- and fun-- from Helfer..."
- Backstage, 1/2013, The Yeomen of the Guard at New York City Center

"... and Amy Helfer [sic] as Kalyba, charmed..."
- The New York Times, 11/23/2010, Utopia, Limited at Symphony Space

"The other girl affected by Colonel Fairfax’s imprisonment and escape is Phoebe Meryll, acted with admirable spirit by Ms. Amy Maude Helfer. Ms. Helfer makes it clear that Phoebe clearly loves the Colonel, even if she has something of a track record with men (such as Shadbolt) and her despair at discovering how painful jealousy is very touchingly revealed in the quartet 'When a Wooer Goes A-Wooing.'"
- Savoynet, 1/2013, The Yeomen of the Guard at New York City Center

"Another stand-out in the funny department is Amy Maude Helfer as Kate, her facial expressions alone, had me laughing!"
- The Rogers Revue, 7/2012, The Pirates of Penzance at Wolf Trap

"Fine comical turns are also provided by... Amy Maude Helfer, whose flirty Pitti-Sing is sung with an expressive mezzo." 
- BroadwayWorld.com, 1/2011, The Mikado at Symphony Space

"Casting was strong all around... Amy Maude Helfer was right on the button as soubrette Susan who’s so smitten with Bennie."
- Forbes on Film & Footlights, 11/2010, The Desert Song with Light Opera of New York