======================== unified (from filesystem) ========================
                                         'bitrate'  '228.934'
                                        'duration'  '319'
                                          'artist'  'Red Sovine'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Billy's Christmas Wish"
                                           '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'  ("['classic country', 'spoken word', 'country', 'honky tonk', 'country and "
 "western', 'rockabilly']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;set-th-christmas'
                                             'bpm'  '89.850'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '89.850'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'set-th-christmas']
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "Billy's Christmas Wish"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Sovine'
'TPE2' (Band/orchestra/accompaniment)               'Red Sovine'
'TPOS' (Part of a set)                              '1/1'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '319157'
'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'                                   ['classic country',
 'spoken word',
 'country',
 'honky tonk',
 'country and western',
 'rockabilly']
'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'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.768844'

========================== row from database ==========================
                                              'id'  1511154
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Red Sovine - Billy_s Christmas Wish(sad).wma.mp3
                                         'working'  None
                                         'bitrate'  228
                                    'duration_sec'  319
                                           'genre'  loc-namerica-country;set-th-christmas
                                        'filesize'  9142273
                                           'mtime'  1621628266
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Billy_s Wish(sad).wma loc namerica country;set th christmas
                                      'tag_artist'  Red Sovine
                                     'tag_release'  None
                                       'tag_title'  Billy's Christmas Wish
                                             'bpm'  89.85
                                    'search_title'  'billy':1 'billys':3 'christmas':4 's':2 'wish':5
                                   'search_artist'  'red':1 'sovine':2
                                  'search_release'  
                                     'search_rest'  'billy':7 'christmas':20 'country':4,15,17 'exotica':2 'jazz':1 'loc':13 'music':6 'namerica':14 'old':5 'oldies':3 's':8 'sad':10 'set':16,18 'th':19 'wish':9 'wishsadwma':12 'wma':11
                                    'search_combo'  'billy':1A,14 'billys':3A 'christmas':4A,27 'country':11,22,24 'exotica':9 'jazz':8 'loc':20 'music':13 'namerica':21 'old':12 'oldies':10 'red':6B 's':2A,15 'sad':17 'set':23,25 'sovine':7B 'th':26 'wish':5A,16 'wishsadwma':19 'wma':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           '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'  ['classic country', 'spoken word', 'country', 'honky tonk', 'country and western', 'rockabilly']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628266.2971985  (2021-05-21 22:17:46)
                             'size'  9142273