======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '262'
                                          'artist'  'Don Johnson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Heartbeat'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['miami vice', 'pop', 'soundtrack', 'american', '80s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;rock-cppex'
                                             'bpm'  '110.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '110.2'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'rock-cppex']
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Heartbeat'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Johnson'
'TXXX:Mp3gain_minmax'                               '000,190'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['miami vice', 'pop', 'soundtrack', 'american', '80s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.20 dB'
'TXXX:replaygain_track_peak'                        '0.593185'

========================== row from database ==========================
                                              'id'  1533004
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/DSA/Don Johnson - Heartbeat.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  262
                                           'genre'  electronic-we-disco or italo;rock-cppex
                                        'filesize'  4200371
                                           'mtime'  1620737185
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s DSA electronic we disco or italo;rock cppex
                                      'tag_artist'  Don Johnson
                                     'tag_release'  None
                                       'tag_title'  Heartbeat
                                             'bpm'  110.2
                                    'search_title'  'heartbeat':1
                                   'search_artist'  'don':1 'johnson':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '70':3 '80':5 'cppex':15 'disco':2 'dsa':7 'electronic':8 'italo':11,13 'or':10 'rock':12,14 's':4,6 'we':9
                                    'search_combo'  '00poprockelectronic':4 '70':6 '80':8 'cppex':18 'disco':5 'don':2B 'dsa':10 'electronic':11 'heartbeat':1A 'italo':14,16 'johnson':3B 'or':13 'rock':15,17 's':7,9 'we':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['miami vice', 'pop', 'soundtrack', 'american', '80s', 'classic rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737185.4964092  (2021-05-11 14:46:25)
                             'size'  4200371