uint8_t seq_active_track = 0;
uint8_t seq_menu;
bool seq_button_r = false;
bool seq_noteoffsent[4] = {false,false,false,false};
elapsedMillis seq_millis_timer;
uint8_t seq_step = 0;
uint32_t seq_timer_previous = 0;
bool seq_running = false;
bool seq_recording = false;
uint8_t seq_note_in;
uint8_t seq_note_in_velocity;
int seq_transpose;
int seq_tempo_ms=147;
int seq_bpm=102;
uint8_t seq_temp_select_menu;
uint8_t seq_temp_active_menu = 99;
uint8_t seq_chain_active_chainstep;
uint8_t seq_chain_lenght = 3; // 0=16 steps, 1=32 Steps, 2=46 Steps, 3=64 Steps
uint8_t seq_chain_active_step = 0;
uint8_t seq_prev_note[4]; // note_offs for every (instr.) track
uint8_t seq_data[10][16] = {72 ,0  ,0  ,0  ,72 ,0  ,0  ,0  ,72 ,0  ,0  ,0  ,72 ,0  ,0  ,0  ,
                            78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,78 ,
                            72 ,0  ,0  ,0  ,72 ,0  ,0  ,0  ,72 ,0  ,0  ,75 ,72 ,0  ,0  ,0  ,
                            0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                            0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                            55 ,0  ,0  ,0  ,0  ,0  ,52 ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                            57 ,0  ,0  ,0  ,0  ,0  ,53 ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                            74 ,0  ,0  ,72 ,0  ,0  ,74 ,0  ,0  ,0  ,76 ,0  ,0  ,0  ,0  ,0  ,
                            74 ,0  ,0  ,72 ,0  ,0  ,71 ,0  ,0  ,0  ,67 ,0  ,0  ,0  ,0  ,0  ,
                            69 ,0  ,0  ,76 ,0  ,0  ,69 ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  

                           };
uint8_t seq_vel[10][16] = {120 ,0  ,0  ,0  ,120  ,0  ,0  ,0  ,120  ,0  ,0  ,0  ,120  ,0  ,0  ,0  ,
                          125  ,101  ,125  ,125  ,126  ,98 ,126  ,99 ,126  ,97 ,126  ,100  ,126  ,99 ,125  ,100  ,
                          120  ,0  ,0  ,0  ,120  ,0  ,0  ,0  ,120  ,0  ,120  ,120  ,120  ,120  ,0  ,0  ,
                          0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                          0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                          125  ,0  ,0  ,0  ,0  ,0  ,126  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                          78 ,120  ,0  ,0  ,0  ,0  ,84 ,120  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,
                          98 ,120  ,0  ,88 ,120  ,0  ,127  ,120  ,0  ,0  ,125  ,120  ,0  ,0  ,
                          0  ,0  ,124  ,120  ,0  ,115  ,0  ,0  ,126  ,120  ,0  ,120  ,127  ,120  ,0  ,0  ,
                          0  ,0  ,123  ,120  ,0  ,110  ,120  ,0  ,90 ,120  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  
                          };

uint8_t seq_patternchain[4][4] = { 0 ,1 ,6 ,9 ,0 ,1 ,5 ,8 ,0 ,1 ,6 ,9 ,2 ,1 ,5 ,7 
                                 };
uint8_t seq_content_type[10] = { 0, 0, 0, 0 , 1, 1, 1 , 1 , 1 , 1  }; // 0 = track is Drumtrack, 1= Instrumenttrack
uint8_t seq_track_type[4] = { 0, 0, 1, 1 }; // 0 = track is Drumtrack, 1= Instrumenttrack

//uint8_t seq_reverb[4][16] = {0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0,
//                             0, 0,  0, 0, 15, 0,  0, 0, 0, 0,  0, 0, 36, 0,  0, 0,
//                             0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
//                             0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
//                            };