======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '257'
                                          'artist'  'Apparat Organ Quartet'
                                     'text_people'  ''
                                         'release'  'Apparat Organ Quartet'
                                           'title'  'Stereo Rock & Roll'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['indie', 'iceland', 'icelandic', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '127.044'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Apparat Organ Quartet'
'TBPM' (BPM (beats per minute))                     '127.044'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Stereo Rock & Roll'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Apparat Organ Quartet'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['indie', 'iceland', 'icelandic', 'electronic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.408751'

========================== row from database ==========================
                                              'id'  1312825
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Apparat Organ Quartet/Apparat Organ Quartet/apparat organ quartet - 02 - stereo rock & roll.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  257
                                           'genre'  electronic
                                        'filesize'  6180746
                                           'mtime'  1636913055
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer apparat organ quartet 02 stereo rock roll electronic
                                      'tag_artist'  Apparat Organ Quartet
                                     'tag_release'  Apparat Organ Quartet
                                       'tag_title'  Stereo Rock & Roll
                                             'bpm'  127.044
                                    'search_title'  'rock':2 'roll':3 'stereo':1
                                   'search_artist'  'apparat':1 'organ':2 'quartet':3
                                  'search_release'  'apparat':1 'organ':2 'quartet':3
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 'apparat':3 'electronic':9 'organ':4 'quartet':5 'rock':7 'roll':8 'stereo':6
                                    'search_combo'  '00calmer':11 '00poprockelectronic':10 'apparat':4B,7C,12 'electronic':18 'organ':5B,8C,13 'quartet':6B,9C,14 'rock':2A,16 'roll':3A,17 'stereo':1A,15
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'iceland', 'icelandic', 'electronic', 'experimental']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913054.6029649  (2021-11-14 19:04:14)
                             'size'  6180746