======================== unified (from filesystem) ========================
                                         'bitrate'  '176.864'
                                        'duration'  '168'
                                          'artist'  'LEFTY FRIZZELL'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Heart~ (Don't Love Her Anymore)"
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['country', 'traditional country', 'singer songwriter', 'honky tonk', "
 "'classic country']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '106.700'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.700'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "Heart~ (Don't Love Her Anymore)"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'LEFTY FRIZZELL'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Length'                                       '167829'
'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'                                   ['country',
 'traditional country',
 'singer songwriter',
 'honky tonk',
 '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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.605150'

========================== row from database ==========================
                                              'id'  1510887
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Lefty Frizzell - Heart, Don_t Love Her Anymore.wma.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  168
                                           'genre'  loc-namerica-country
                                        'filesize'  3717120
                                           'mtime'  1621628229
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Lefty Frizzell Heart, Don_t Anymore.wma loc namerica country
                                      'tag_artist'  LEFTY FRIZZELL
                                     'tag_release'  None
                                       'tag_title'  Heart~ (Don't Love Her Anymore)
                                             'bpm'  106.7
                                    'search_title'  'anymore':7,8 'don':2 'dont':4 'heart':1 'her':6 'love':5 't':3
                                   'search_artist'  'frizzell':2 'lefty':1
                                  'search_release'  
                                     'search_rest'  'anymore':13 'anymorewma':15 'country':4 'don':11 'exotica':2 'frizzell':8 'heart':9,10 'jazz':1 'lefty':7 'loc':16 'music':6 'namerica':17 'old':5 'oldies':3 't':12 'wma':14
                                    'search_combo'  'anymore':7A,8A,23 'anymorewma':25 'country':14 'don':2A,21 'dont':4A 'exotica':12 'frizzell':10B,18 'heart':1A,19,20 'her':6A 'jazz':11 'lefty':9B,17 'loc':26 'love':5A 'music':16 'namerica':27 'old':15 'oldies':13 't':3A,22 'wma':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           '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-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['country', 'traditional country', 'singer songwriter', 'honky tonk', 'classic country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628228.8934205  (2021-05-21 22:17:08)
                             'size'  3717120