======================== unified (from filesystem) ========================
                                         'bitrate'  '101.616'
                                        'duration'  '109'
                                          'artist'  'copas'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Alabam (radio)'
                                           '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-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '104.498'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '104.498'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Alabam (radio)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'copas'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.503964'

========================== row from database ==========================
                                              'id'  967577
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Cowboy Copas - Alabam (radio).wma.mp3
                                         'working'  None
                                         'bitrate'  101
                                    'duration_sec'  109
                                           'genre'  loc-namerica-country
                                        'filesize'  1394244
                                           'mtime'  1621628048
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Cowboy Copas (radio).wma loc namerica country
                                      'tag_artist'  copas
                                     'tag_release'  None
                                       'tag_title'  Alabam (radio)
                                             'bpm'  104.498
                                    'search_title'  'alabam':1 'radio':2,3
                                   'search_artist'  'copas':1
                                  'search_release'  
                                     'search_rest'  'copas':8 'country':4 'cowboy':7 'exotica':2 'jazz':1 'loc':12 'music':6 'namerica':13 'old':5 'oldies':3 'radio':9 'radiowma':11 'wma':10
                                    'search_combo'  'alabam':1A 'copas':4B,12 'country':8 'cowboy':11 'exotica':6 'jazz':5 'loc':16 'music':10 'namerica':17 'old':9 'oldies':7 'radio':2A,3A,13 'radiowma':15 'wma':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           '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-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628047.7253947  (2021-05-21 22:14:07)
                             'size'  1394244