diff --git a/.gitignore b/.gitignore
index e69de29..8bc945c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,7 @@
+.DS_Store
+
+.venv
+venv
+
+.idea
+
diff --git a/examples/csv-frequency/cau.hfx-metadata.json b/examples/csv-frequency/cau.hfx-metadata.json
index 5c3aa94..c5e67c2 100644
--- a/examples/csv-frequency/cau.hfx-metadata.json
+++ b/examples/csv-frequency/cau.hfx-metadata.json
@@ -48,7 +48,6 @@
     },
     "nomenclatureUsed": {
       "database": "IPD-IMGT/HLA",
-      "group": "",
       "version": "3.20.0"
     },
     "producer": {
@@ -60,7 +59,7 @@
         "year": "2007"
       }
     },
-    "frequencyLocation": "file://cau.csv",
+    "frequencyDataLocation": "file://cau.csv",
     "checkSum": "8e7bb58cff1a32c250898c13f2c354f4"
   }
 }
diff --git a/examples/inline-frequency/cau.hfx-metadata.json b/examples/inline-frequency/cau.hfx-metadata.json
index 2a2907c..2018fe8 100644
--- a/examples/inline-frequency/cau.hfx-metadata.json
+++ b/examples/inline-frequency/cau.hfx-metadata.json
@@ -48,7 +48,6 @@
     },
     "nomenclatureUsed": {
       "database": "IPD-IMGT/HLA",
-      "group": "",
       "version": "3.20.0"
     },
     "producer": {
@@ -60,7 +59,7 @@
         "year": "2007"
       }
     },
-    "frequencyLocation": "inline"
+    "frequencyDataLocation": "inline"
   },
   "frequencyData": [
     {
diff --git a/hfx.schema.json b/hfx.schema.json
index b9dc3ff..963ced3 100644
--- a/hfx.schema.json
+++ b/hfx.schema.json
@@ -35,7 +35,7 @@
         "producer": {
           "$ref": "#/$defs/producer"
         },
-        "frequencyLocation": {
+        "frequencyDataLocation": {
           "$ref": "#/$defs/frequencyDataLocation"
         },
         "license": {
@@ -52,7 +52,7 @@
         "hfeMethod",
         "cohortDescription",
         "nomenclatureUsed",
-        "frequencyLocation"
+        "frequencyDataLocation"
       ],
       "additionalProperties": false
     },
@@ -163,7 +163,7 @@
       "properties": {
         "species": {
           "type": "string",
-          "description": "The species the Hf set is based on"
+          "description": "Species as defined in https://www.ebi.ac.uk/ena/ i.e. https://www.ebi.ac.uk/ena/browser/view/Taxon:9606 for 'human'"
         },
         "population": {
           "type": "array",
@@ -268,10 +268,6 @@
           ],
           "description": "IPD main groups"
         },
-        "group": {
-          "type": "string",
-          "description": "Groups such as NHP, DLA, FISH etc.."
-        },
         "version": {
           "type": "string",
           "description": "Version of the IPD database"