======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '110'
                                          'artist'  'Transglobal Underground'
                                     'text_people'  ''
                                         'release'  'Untitled - New CD'
                                           'title'  'Track 5'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['world fusion', 'electronica', 'world music', 'ambient', 'world', "
 "'electronic']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '86.511'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Untitled - New CD'
'TBPM' (BPM (beats per minute))                     '86.511'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TIT2' (Title/songname/content description)         'Track 5'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Transglobal Underground'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['world fusion', 'electronica', 'world music', 'ambient', 'world', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.616746'

========================== row from database ==========================
                                              'id'  1116746
                                            'path'  /data/Music/Bulk/00localcharacter/Tracks from Various albums & singles [64k-320k]/transglobal underground - imperial hippy.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  110
                                           'genre'  loc-m
                                        'filesize'  882727
                                           'mtime'  1620527733
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Tracks from Various albums & singles [64k 320k] transglobal underground imperial hippy loc m
                                      'tag_artist'  Transglobal Underground
                                     'tag_release'  Untitled - New CD
                                       'tag_title'  Track 5
                                             'bpm'  86.511
                                    'search_title'  '5':2 'track':1
                                   'search_artist'  'transglobal':1 'underground':2
                                  'search_release'  'cd':3 'new':2 'untitled':1
                                     'search_rest'  '320k':8,9 '64k':6,7 'albums':4 'from':2 'hippy':13 'imperial':12 'loc':14 'm':15 'singles':5 'tracks':1 'transglobal':10 'underground':11 'various':3
                                    'search_combo'  '320k':15,16 '5':2A '64k':13,14 'albums':11 'cd':7C 'from':9 'hippy':20 'imperial':19 'loc':21 'm':22 'new':6C 'singles':12 'track':1A 'tracks':8 'transglobal':3B,17 'underground':4B,18 'untitled':5C 'various':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['world fusion', 'electronica', 'world music', 'ambient', 'world', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527733.2541757  (2021-05-09 04:35:33)
                             'size'  882727