======================== unified (from filesystem) ========================
                                         'bitrate'  '141.062'
                                        'duration'  '169'
                                          'artist'  'Al Dexter'
                                     'text_people'  ''
                                         'release'  'Old Country Music'
                                           'title'  "I'm Losing My Mind Over You"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', '30s', 'early country', 'classic country']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '97.930'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Old Country Music'
'TBPM' (BPM (beats per minute))                     '97.930'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "I'm Losing My Mind Over You"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Dexter'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['country', '30s', 'early country', 'classic country']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.88 dB'
'TXXX:replaygain_track_peak'                        '0.598307'

========================== row from database ==========================
                                              'id'  1506059
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/AL DEXTER - I_m Losing My Mind Over You.wma.mp3
                                         'working'  None
                                         'bitrate'  141
                                    'duration_sec'  169
                                           'genre'  loc-namerica-country
                                        'filesize'  2985411
                                           'mtime'  1621628009
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country AL DEXTER I_m You.wma loc namerica country
                                      'tag_artist'  Al Dexter
                                     'tag_release'  Old Country Music
                                       'tag_title'  I'm Losing My Mind Over You
                                             'bpm'  97.93
                                    'search_title'  'i':1 'im':3 'losing':4 'm':2 'mind':6 'my':5 'over':7 'you':8
                                   'search_artist'  'al':1 'dexter':2
                                  'search_release'  'country':2 'music':3 'old':1
                                     'search_rest'  'al':5 'country':4 'dexter':6 'exotica':2 'i':7 'jazz':1 'loc':12 'm':8 'namerica':13 'oldies':3 'wma':10 'you':9 'youwma':11
                                    'search_combo'  'al':9B,18 'country':12C,17 'dexter':10B,19 'exotica':15 'i':1A,20 'im':3A 'jazz':14 'loc':25 'losing':4A 'm':2A,21 'mind':6A 'music':13C 'my':5A 'namerica':26 'old':11C 'oldies':16 'over':7A 'wma':23 'you':8A,22 'youwma':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['country', '30s', 'early country', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621628009.266819  (2021-05-21 22:13:29)
                             'size'  2985411