======================== unified (from filesystem) ========================
                                         'bitrate'  '146.324'
                                        'duration'  '75'
                                          'artist'  'Boards Of Canada'
                                     'text_people'  'Eoin, Marcus/Sandison, Michael'
                                         'release'  'Music Has The Right To Children'
                                           'title'  'Wildlife Analysis'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['deepspaceone', 'idm', 'electronic', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '18'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '125.393'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Music Has The Right To Children'
'TBPM' (BPM (beats per minute))                     '125.393'
'TCOM' (Composer)                                   'Eoin, Marcus/Sandison, Michael'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Wildlife Analysis'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boards Of Canada'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/18'
'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:iTunes_CDDB_IDs'                              '18+994E1C4E45D9DA7C112787160EE3A645+3998390'
'TXXX:lastfmtags'                                   ['deepspaceone', 'idm', 'electronic', 'chillout', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.342287'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1349511
                                            'path'  /data/Music/Bulk/00poprockelectronic/Boards of Canada/Music Has The Right To Children/01 Wildlife Analysis.mp3
                                         'working'  None
                                         'bitrate'  146
                                    'duration_sec'  75
                                           'genre'  electronic-ambient
                                        'filesize'  1388065
                                           'mtime'  1636911046
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic of 01 electronic ambient
                                      'tag_artist'  Boards Of Canada
                                     'tag_release'  Music Has The Right To Children
                                       'tag_title'  Wildlife Analysis
                                             'bpm'  125.393
                                    'search_title'  'analysis':2 'wildlife':1
                                   'search_artist'  'boards':1 'canada':3 'of':2
                                  'search_release'  'children':6 'has':2 'music':1 'right':4 'the':3 'to':5
                                     'search_rest'  '00poprockelectronic':1 'ambient':4 'electronic':3 'of':2
                                    'search_combo'  '00poprockelectronic':12 'ambient':15 'analysis':2A 'boards':3B 'canada':5B 'children':11C 'electronic':14 'has':7C 'music':6C 'of':4B,13 'right':9C 'the':8C 'to':10C 'wildlife':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['deepspaceone', 'idm', 'electronic', 'chillout', 'ambient']
                                        'tag_date'  1998
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636911046.2748787  (2021-11-14 18:30:46)
                             'size'  1388065