diff --git a/corrlib/input/hadrons.py b/corrlib/input/hadrons.py
new file mode 100644
index 0000000..b335138
--- /dev/null
+++ b/corrlib/input/hadrons.py
@@ -0,0 +1,48 @@
+import pyerrors.input.hadrons as input
+import datalad.api as dl
+import os
+
+# same as in Grid/qcd/spin/Gamma.h
+
+defd_gammas=[
+            'MinusGamma5', 'Gamma5',
+            'MinusGammaT', 'GammaT', 'MinusGammaTGamma5', 'GammaTGamma5',
+            'MinusGammaX', 'GammaX', 'MinusGammaXGamma5', 'GammaXGamma5',
+            'MinusGammaY', 'GammaY', 'MinusGammaYGamma5', 'GammaYGamma5',
+            'MinusGammaZ', 'GammaZ', 'MinusGammaZGamma5', 'GammaZGamma5',
+            'MinusIdentity', 'Identity',
+            'MinusSigmaXT', 'SigmaXT',
+            'MinusSigmaXY', 'SigmaXY',
+            'MinusSigmaXZ', 'SigmaXZ',
+            'MinusSigmaYT', 'SigmaYT',
+            'MinusSigmaYZ', 'SigmaYZ',
+            'MinusSigmaZT', 'SigmaZT'
+            ]
+
+
+def read_meson_hd5(path, project, dir_in_project, prefix, ensemble, gammas):
+    directory = os.path.join(path, "projects", project, dir_in_project)
+    measurements = {}
+
+    dl.get(directory, dataset=path)
+
+    if gammas == 'all':
+        for g1 in defd_gammas:
+            for g2 in defd_gammas:
+                try:
+                    corr = input.read_meson_hd5(directory, prefix, ensemble, (g1, g2))
+                    measurements[g1][g2] = corr
+                except Exception:
+                    raise Exception("Combination (" + g1 + "," + g2 + ") not in data.")
+    else:
+        for gs in gammas:
+            if len(gs) == 2:
+                if gs[0] not in defd_gammas:
+                    raise ValueError(gammas[0] + " is none of the defined gammas.")
+                if gs[1] not in defd_gammas:
+                    raise ValueError(gammas[1] + " is none of the defined gammas.")
+                corr = input.read_meson_hd5(directory, prefix, ensemble, gs)
+                measurements[gs[0]][gs[1]] = corr
+            else:
+                raise Exception("Each element in 'gammas' has to have length 2.")
+    return measurements