======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '91'
                                          'artist'  'Christian Wallumrød Ensemble'
                                     'text_people'  ''
                                         'release'  'Sofienberg Variations'
                                           'title'  'small picture #1'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['norwegian', 'ecm', 'jazz', 'contemporary jazz', 'scandinavian jazz']"
                                     'discogstags'  "['jazz', 'contemporary jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '141.6'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sofienberg Variations'
'TBPM' (BPM (beats per minute))                     '141.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'small picture #1'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Christian Wallumrød Ensemble'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'contemporary jazz']
'TXXX:lastfmtags'                                   ['norwegian', 'ecm', 'jazz', 'contemporary jazz', 'scandinavian jazz']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.69 dB'
'TXXX:replaygain_track_peak'                        '0.815712'

========================== row from database ==========================
                                              'id'  1379998
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Christian Wallumrød Ensemble - 2003 -  Sofienberg Variations/05 - small picture #1.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  91
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3669597
                                           'mtime'  1620573984
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 2003 05 prerock jb jazz unsorted
                                      'tag_artist'  Christian Wallumrød Ensemble
                                     'tag_release'  Sofienberg Variations
                                       'tag_title'  small picture #1
                                             'bpm'  141.6
                                    'search_title'  '1':3,4 'picture':2 'small':1
                                   'search_artist'  'christian':1 'ensemble':4 'wallumrod':3 'wallumrød':2
                                  'search_release'  'sofienberg':1 'variations':2
                                     'search_rest'  '2003':5 'country':4 'exotica':2 'jazz':1 'jb':7 'oldies':3 'prerock':6 'unsorted':8
                                    'search_combo'  '1':3A,4A '2003':15 'christian':5B 'country':14 'ensemble':8B 'exotica':12 'jazz':11 'jb':17 'oldies':13 'picture':2A 'prerock':16 'small':1A 'sofienberg':9C 'unsorted':18 'variations':10C 'wallumrod':7B 'wallumrød':6B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['norwegian', 'ecm', 'jazz', 'contemporary jazz', 'scandinavian jazz']
                                        'tag_date'  2001
                                     'discogstags'  ['jazz', 'contemporary jazz']

============================== file details ==============================
                                           'mtime'  1620573983.7802248  (2021-05-09 17:26:23)
                             'size'  3669597