======================== unified (from filesystem) ========================
                                         'bitrate'  '194.717'
                                        'duration'  '152'
                                          'artist'  'Hank Locklin'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You Only Want Me When You're Lonely"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'male vocalists', '50s', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '116.992'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '116.992'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "You Only Want Me When You're Lonely"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Hank Locklin'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '152715'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['country', 'male vocalists', '50s', 'classic country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.86 dB'
'TXXX:replaygain_track_peak'                        '0.430581'

========================== row from database ==========================
                                              'id'  1504923
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Hank Locklin - You Only Want Me When You_re Lonely.wma.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  152
                                           'genre'  loc-namerica-country
                                        'filesize'  3723589
                                           'mtime'  1621628136
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music You_re Lonely.wma loc namerica country
                                      'tag_artist'  Hank Locklin
                                     'tag_release'  None
                                       'tag_title'  You Only Want Me When You're Lonely
                                             'bpm'  116.992
                                    'search_title'  'lonely':9 'me':4 'only':2 're':7 'want':3 'when':5 'you':1,6 'youre':8
                                   'search_artist'  'hank':1 'locklin':2
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'loc':12 'lonely':9 'lonelywma':11 'music':6 'namerica':13 'old':5 'oldies':3 're':8 'wma':10 'you':7
                                    'search_combo'  'country':15 'exotica':13 'hank':10B 'jazz':12 'loc':23 'locklin':11B 'lonely':9A,20 'lonelywma':22 'me':4A 'music':17 'namerica':24 'old':16 'oldies':14 'only':2A 're':7A,19 'want':3A 'when':5A 'wma':21 'you':1A,6A,18 'youre':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'male vocalists', '50s', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628136.46042  (2021-05-21 22:15:36)
                             'size'  3723589