======================== unified (from filesystem) ========================
                                         'bitrate'  '215.283'
                                        'duration'  '169'
                                          'artist'  'Don Reno & Arthur Smith'
                                     'text_people'  ''
                                         'release'  'Old Country Music'
                                           'title'  'Chicken'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-2', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bluegrass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '141.611'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Old Country Music'
'TBPM' (BPM (beats per minute))                     '141.611'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Chicken'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Reno & Arthur Smith'
'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'                                   'bluegrass'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.10 dB'
'TXXX:replaygain_track_peak'                        '0.619316'

========================== row from database ==========================
                                              'id'  967475
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Arthur Smith & Don Reno - Chicken.wma.mp3
                                         'working'  None
                                         'bitrate'  215
                                    'duration_sec'  169
                                           'genre'  loc-namerica-country
                                        'filesize'  4568636
                                           'mtime'  1621628009
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Chicken.wma loc namerica country
                                      'tag_artist'  Don Reno & Arthur Smith
                                     'tag_release'  Old Country Music
                                       'tag_title'  Chicken
                                             'bpm'  141.611
                                    'search_title'  'chicken':1
                                   'search_artist'  'arthur':3 'don':1 'reno':2 'smith':4
                                  'search_release'  'country':2 'music':3 'old':1
                                     'search_rest'  'chicken':5 'chickenwma':7 'country':4 'exotica':2 'jazz':1 'loc':8 'namerica':9 'oldies':3 'wma':6
                                    'search_combo'  'arthur':4B 'chicken':1A,13 'chickenwma':15 'country':7C,12 'don':2B 'exotica':10 'jazz':9 'loc':16 'music':8C 'namerica':17 'old':6C 'oldies':11 'reno':3B 'smith':5B 'wma':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['bluegrass']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628009.4477482  (2021-05-21 22:13:29)
                             'size'  4568636