======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '220'
                                          'artist'  'Knight Rider'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  "bad boy steppin'"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-UNU-3', 'Q-HHRNBTT-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'trance', 'soundtrack', 'hoerspiel', 'hörspiel']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '109.6'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '109.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2010'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         "bad boy steppin'"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Knight Rider'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['reggae', 'trance', 'soundtrack', 'hoerspiel', 'hörspiel']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.991702'

========================== row from database ==========================
                                              'id'  648421
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Knight_Rider_-_Bad_Boy_Steppin.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  220
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  8837760
                                           'mtime'  1621696439
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs Knight_Rider_ _Bad_Boy_Steppin electronic experimental oddness
                                      'tag_artist'  Knight Rider
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  bad boy steppin'
                                             'bpm'  109.6
                                    'search_title'  'bad':1 'boy':2 'steppin':3,4
                                   'search_artist'  'knight':1 'rider':2
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'bad':5 'boy':6 'electronic':8 'experimental':9 'knight':3 'maniacs':2 'music':1 'oddness':10 'rider':4 'steppin':7
                                    'search_combo'  'bad':1A,14 'boy':2A,15 'electronic':17 'experimental':18 'for':8C 'knight':5B,12 'maniacs':9C,11 'music':7C,10 'oddness':19 'rider':6B,13 'steppin':3A,4A,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'trance', 'soundtrack', 'hoerspiel', 'hörspiel']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696439.0978546  (2021-05-22 17:13:59)
                             'size'  8837760