======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '221'
                                          'artist'  'Glen Ellison'
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol  2905'
                                           'title'  'Nanny I Have Never Loved Another Girl But You'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '94.327'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Edison Blue Amberol  2905'
'TBPM' (BPM (beats per minute))                     '94.327'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1916'
'TIT2' (Title/songname/content description)         'Nanny I Have Never Loved Another Girl But You'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Glen Ellison'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.56 dB'
'TXXX:replaygain_track_peak'                        '0.656013'

========================== row from database ==========================
                                              'id'  1428284
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Glen Ellison - Nanny I Have Never Loved Another Girl But You -2-1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  221
                                           'genre'  prerock-vocal
                                        'filesize'  4433714
                                           'mtime'  1620666252
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 1916 prerock vocal
                                      'tag_artist'  Glen Ellison
                                     'tag_release'  Edison Blue Amberol  2905
                                       'tag_title'  Nanny I Have Never Loved Another Girl But You
                                             'bpm'  94.327
                                    'search_title'  'another':6 'but':8 'girl':7 'have':3 'i':2 'loved':5 'nanny':1 'never':4 'you':9
                                   'search_artist'  'ellison':2 'glen':1
                                  'search_release'  '2905':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1916':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':20 '1916':21 '2905':15C 'amberol':14C 'another':6A 'blue':13C 'but':8A 'country':19 'edison':12C 'ellison':11B 'exotica':17 'girl':7A 'glen':10B 'have':3A 'i':2A 'jazz':16 'loved':5A 'nanny':1A 'never':4A 'oldies':18 'prerock':22 'vocal':23 'you':9A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1916
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666251.717312  (2021-05-10 19:04:11)
                             'size'  4433714