diff --git a/UI.hpp b/UI.hpp
index 2379480..7a9cd75 100644
--- a/UI.hpp
+++ b/UI.hpp
@@ -75,7 +75,7 @@ extern uint8_t seq_data[10][16];
 extern uint8_t seq_vel[10][16];
 extern uint8_t seq_patternchain[4][4];
 extern uint8_t seq_content_type[10];
-extern uint8_t seq_track_type[4];
+extern uint8_t seq_track_type[];
 extern uint8_t seq_step;
 extern uint8_t seq_chord_key_ammount;
 extern int seq_tempo_ms;
diff --git a/config.h b/config.h
index 3d3dc33..4d934b1 100644
--- a/config.h
+++ b/config.h
@@ -111,6 +111,8 @@
 
 // NUMBER OF PARALLEL SAMPLEDRUMS
 #define NUM_DRUMS 8
+// NUMBER OF SAMPLES IN DRUMSET
+#define NUM_DRUMSET_CONFIG 20
 
 // CHORUS parameters
 #define MOD_DELAY_SAMPLE_BUFFER int32_t(TIME_MS2SAMPLES(20.0)) // 20.0 ms delay buffer. 
diff --git a/dexed_sd.cpp b/dexed_sd.cpp
index 87cca51..a51cf99 100644
--- a/dexed_sd.cpp
+++ b/dexed_sd.cpp
@@ -38,6 +38,7 @@ extern void check_configuration_dexed(uint8_t instance_id);
 extern void check_configuration_performance(void);
 extern void check_configuration_fx(void);
 extern void sequencer();
+extern float drums_volume;
 //extern StaticJsonDocument<JSON_BUFFER> data_json;
 extern uint8_t seq_chain_lenght;
 extern uint8_t seq_data[10][16];
@@ -61,6 +62,19 @@ extern uint8_t seq_chord_dexed_inst;
 extern uint8_t seq_inst_dexed[4];
 extern PeriodicTimer timer1;
 
+typedef struct drum_config_s {
+  uint8_t drum_class; // Type of drum
+  uint8_t midinote;   // Triggered by note
+  char name[DRUM_NAME_LEN];
+  const unsigned int* drum_data;
+  char shortname[2];  // 1 char name for sequencer
+  float32_t pan;      // Panorama (-1.0 - +1.0)
+  float32_t vol_max;  // max. Volume (0.0 - 1.0)
+  float32_t vol_min;  // min. Volume (0.0 - 1.0, should be <= vol_max)
+  float32_t reverb_send; // how much signal to send to the reverb (0.0 - 1.0)
+} drum_config_t;
+
+extern drum_config_t drum_config[NUM_DRUMSET_CONFIG];
 
 /******************************************************************************
    SD BANK/VOICE LOADING
@@ -774,7 +788,7 @@ bool save_sd_fx_json(uint8_t fx)
 }
 
 bool load_sd_seq_drumsettings_json(uint8_t number)
-{
+{ // test function , to save drumsettings for use in sequencer, so storing in the SEQ_Path for now
   if (number < 0)
     return (false);
 
@@ -809,17 +823,15 @@ bool load_sd_seq_drumsettings_json(uint8_t number)
         serializeJsonPretty(data_json, Serial);
         Serial.println();
 #endif
+        drums_volume = data_json["drums_volume"];
 
-        //  drums_volume = data_json["drums_volume"];
-
-        for (uint8_t i = 0; i < 20; i++) // needs to replaced by NUM_DRUMSET_CONFIG but does not work
+        for (uint8_t i = 0; i < NUM_DRUMSET_CONFIG; i++)
         {
-          //          drum_config[i].pan = data_json["pan"][i] ;
-          //          drum_config[i].vol_max = data_json["vol_max"][i] ;
-          //          drum_config[i].vol_min = data_json["vol_min"][i] ;
-          //          drum_config[i].reverb_send = data_json["reverb_send"][i];
+          drum_config[i].pan = data_json["pan"][i] ;
+          drum_config[i].vol_max = data_json["vol_max"][i] ;
+          drum_config[i].vol_min = data_json["vol_min"][i] ;
+          drum_config[i].reverb_send = data_json["reverb_send"][i];
         }
-        //set_fx_params();
 
         return (true);
       }
@@ -845,7 +857,7 @@ bool load_sd_seq_drumsettings_json(uint8_t number)
 }
 
 bool save_sd_seq_drumsettings_json(uint8_t number)
-{
+{ // test function , to save drumsettings for use in sequencer, since storing in the SEQ_Path for now
   char filename[FILENAME_LEN];
   number = constrain(number, 0, 99);
 
@@ -863,17 +875,22 @@ bool save_sd_seq_drumsettings_json(uint8_t number)
 #endif
 
     AudioNoInterrupts();
+
+    if (SD.exists(filename)){ 
+    Serial.println("remove old drumsettings file");
+    SD.remove(filename);
+  }
     json = SD.open(filename, FILE_WRITE);
     if (json)
     {
-      //  data_json["drums_volume"] = drums_volume;
+      data_json["drums_volume"] = drums_volume;
 
-      for (uint8_t i = 0; i < 20; i++)  // needs to be replaced by  NUM_DRUMSET_CONFIG
+      for (uint8_t i = 0; i < NUM_DRUMSET_CONFIG; i++)
       {
-        //        data_json["pan"][i] = drum_config[i].pan;
-        //        data_json["vol_max"][i] = drum_config[i].vol_max;
-        //        data_json["vol_min"][i] = drum_config[i].vol_min;
-        //        data_json["reverb_send"][i] = drum_config[i].reverb_send;
+        data_json["pan"][i] = drum_config[i].pan;
+        data_json["vol_max"][i] = drum_config[i].vol_max;
+        data_json["vol_min"][i] = drum_config[i].vol_min;
+        data_json["reverb_send"][i] = drum_config[i].reverb_send;
       }
 #ifdef DEBUG
       Serial.println(F("Write JSON data:"));
@@ -905,6 +922,8 @@ bool save_sd_seq_json(uint8_t seq_number)
   int count = 0;
   seq_number = constrain(seq_number, 0, 99);
 
+  save_sd_seq_drumsettings_json(seq_number);
+
   if (sd_card > 0)
   {
     File json;
@@ -1024,6 +1043,7 @@ bool load_sd_seq_json(uint8_t seq_number)
 
   seq_number = constrain(seq_number, 0, 99);
 
+  load_sd_seq_drumsettings_json(seq_number);
   if (sd_card > 0)
   {
     File json;
diff --git a/drums.h b/drums.h
index f5a893a..35517a5 100644
--- a/drums.h
+++ b/drums.h
@@ -49,7 +49,6 @@ enum {DRUM_NONE, DRUM_BASS, DRUM_SNARE, DRUM_HIHAT, DRUM_HANDCLAP, DRUM_RIDE, DR
 // DEFAULT MIDI CHANNEL FOR SAMPLEDRUMS
 uint8_t drum_midi_channel=10;
 
-#define NUM_DRUMSET_CONFIG 20
 drum_config_t drum_config[NUM_DRUMSET_CONFIG] =
 {
   {