[1][2] Writing for The Sydney Morning Herald, John Shand observed "the American prefers to remind us of the wonder of the piano being equally capable of a delicacy so diaphanous that it rivals a harp.

Meanwhile its phenomenal range and harmonic and dynamic potential make it the solo instrument par excellence...

It seduces with what ABC Classic FM would call "swoon" music, dazzles with invention and bullies with 88-note cyclones".

[3] PopMatters' Will Layman stated "Callithump is both atypically normal and classic Caine... the stylistic range and sense of genre is massive, all-engulfing.

Ultimately, you come to the end of Callithump exhilarated with the possibilities of a piano, a man, a space".