Left: mass distribution of all ATLASGAL clumps located in the science demonstration field with assigned distances. The mass distribution of clumps associated with a high-mass star formation tracer is shown in red hatching. The bin size is 0.4 dex. Right: mass-distance distribution of all SEDIGISM clouds. Clouds associated with ATLASGAL and with an HMSF tracer are shown in red-filled circles, while the non-HMSF clouds are shown as grey circles (out of which those with an ATLASGAL match are red-outlined). The dotted black line indicates the ¹³CO(2−1) mass sensitivity limit for an unresolved source (i.e. 28′′ radius).