======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '163'
                                          'artist'  'Eddie Calvert'
                                     'text_people'  ''
                                         'release'  'Columbia 338 1071'
                                           'title'  'Man I Love (+ Norrie Paramor Orch)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'easy listening', 'jazz', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1953'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '129.813'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Columbia 338 1071'
'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1953'
'TIT2' (Title/songname/content description)         'Man I Love (+ Norrie Paramor Orch)'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eddie Calvert'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'easy listening', 'jazz', '60s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.07 dB'
'TXXX:replaygain_track_peak'                        '0.471950'

========================== row from database ==========================
                                              'id'  1439378
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1953/Eddie Calvert - Man I Love (+ Norrie Paramor Orchestra) 1953.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  163
                                           'genre'  prerock-swing
                                        'filesize'  3280702
                                           'mtime'  1620562435
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1953 Orchestra) 1953 prerock swing
                                      'tag_artist'  Eddie Calvert
                                     'tag_release'  Columbia 338 1071
                                       'tag_title'  Man I Love (+ Norrie Paramor Orch)
                                             'bpm'  129.813
                                    'search_title'  'i':2 'love':3 'man':1 'norrie':4 'orch':6,7 'paramor':5
                                   'search_artist'  'calvert':2 'eddie':1
                                  'search_release'  '1071':3 '338':2 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1953':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'orchestra':7,8 'prerock':9 'swing':10
                                    'search_combo'  '00oldiepop':17 '1071':12C '1953':18 '338':11C 'calvert':9B 'columbia':10C 'country':16 'eddie':8B 'exotica':14 'i':2A 'jazz':13 'love':3A 'man':1A 'norrie':4A 'oldies':15 'orch':6A,7A 'orchestra':19,20 'paramor':5A 'prerock':21 'swing':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'easy listening', 'jazz', '60s']
                                        'tag_date'  1953
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562435.0982573  (2021-05-09 14:13:55)
                             'size'  3280702