======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '152'
                                          'artist'  'Terrorgruppe'
                                     'text_people'  ''
                                         'release'  'Musik f|r Arschlvcher'
                                           'title'  'Hauptstadt-Lied'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'punk rock', 'deutschpunk', 'punk', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '101.870'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Musik f|r Arschlvcher'
'TBPM' (BPM (beats per minute))                     '101.870'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'SaNiL_LiNkS & NoFX_Cheese'
'TIT2' (Title/songname/content description)         'Hauptstadt-Lied'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Terrorgruppe'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['german', 'punk rock', 'deutschpunk', 'punk', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.63 dB'
'TXXX:replaygain_track_peak'                        '0.629490'

========================== row from database ==========================
                                              'id'  1421556
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Terrorgruppe/Musik f_r Arschlcher/Terrorgruppe - Hauptstadt - 03.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  152
                                           'genre'  rock-gr-punk
                                        'filesize'  2437120
                                           'mtime'  1622659147
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner f_r Arschlcher 03 rock punk
                                      'tag_artist'  Terrorgruppe
                                     'tag_release'  Musik f|r Arschlvcher
                                       'tag_title'  Hauptstadt-Lied
                                             'bpm'  101.87
                                    'search_title'  'hauptstadt':1 'hauptstadtlied':3 'lied':2
                                   'search_artist'  'terrorgruppe':1
                                  'search_release'  'arschlvcher':4 'f':2 'musik':1 'r':3
                                     'search_rest'  'arschlcher':7 'f':5 'garage':2 'punk':1 'r':6 'rock':8 'stoner':4 'surf':3
                                    'search_combo'  'arschlcher':15 'arschlvcher':8C 'f':6C,13 'garage':10 'hauptstadt':1A 'hauptstadtlied':3A 'lied':2A 'musik':5C 'punk':9 'r':7C,14 'rock':16 'stoner':12 'surf':11 'terrorgruppe':4B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['german', 'punk rock', 'deutschpunk', 'punk', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659146.8881395  (2021-06-02 20:39:06)
                             'size'  2437120