======================== unified (from filesystem) ========================
                                         'bitrate'  '229.494'
                                        'duration'  '102'
                                          'artist'  'Johnny Horton'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "O'Leary's Cow 1960"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['honky tonk', 'country', '50s', 'rockabilly', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '94.591'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '94.591'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "O'Leary's Cow 1960"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Horton'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'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:lastfmtags'                                   ['honky tonk', 'country', '50s', 'rockabilly', 'classic country']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.61 dB'
'TXXX:replaygain_track_peak'                        '0.563037'

========================== row from database ==========================
                                              'id'  1515952
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Johnny Horton - O_Leary_s Cow 1960.wma.mp3
                                         'working'  None
                                         'bitrate'  229
                                    'duration_sec'  102
                                           'genre'  loc-namerica-country
                                        'filesize'  2953807
                                           'mtime'  1621628212
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music O_Leary_s 1960.wma loc namerica country
                                      'tag_artist'  Johnny Horton
                                     'tag_release'  None
                                       'tag_title'  O'Leary's Cow 1960
                                             'bpm'  94.591
                                    'search_title'  '1960':6 'cow':5 'leary':2 'o':1 'olearys':4 's':3
                                   'search_artist'  'horton':2 'johnny':1
                                  'search_release'  
                                     'search_rest'  '1960':10 '1960wma':12 'country':4 'exotica':2 'jazz':1 'leary':8 'loc':13 'music':6 'namerica':14 'o':7 'old':5 'oldies':3 's':9 'wma':11
                                    'search_combo'  '1960':6A,18 '1960wma':20 'country':12 'cow':5A 'exotica':10 'horton':8B 'jazz':9 'johnny':7B 'leary':2A,16 'loc':21 'music':14 'namerica':22 'o':1A,15 'old':13 'oldies':11 'olearys':4A 's':3A,17 'wma':19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['honky tonk', 'country', '50s', 'rockabilly', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628212.299169  (2021-05-21 22:16:52)
                             'size'  2953807