======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '251'
                                          'artist'  "T'Pau"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Heart & Soul'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'female vocalists', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '90.2'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '90.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Heart & Soul'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               "T'Pau"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '000,193'
'TXXX:Mp3gain_undo'                                 '+003,+003,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'                                   ['80s', 'new wave', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.37 dB'
'TXXX:replaygain_track_peak'                        '0.479838'

========================== row from database ==========================
                                              'id'  1528796
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/Greatest Hits Of The 80's- Volume 1 to 8/T_Pau - Heart & Soul.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  251
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4026494
                                           'mtime'  1620569107
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Disco 70_s 80_s Greatest Hits Of The 80's Volume 1 to 8 T_Pau electronic we disco or italo
                                      'tag_artist'  T'Pau
                                     'tag_release'  None
                                       'tag_title'  Heart & Soul
                                             'bpm'  90.2
                                    'search_title'  'heart':1 'soul':2
                                   'search_artist'  'pau':2 't':1 'tpau':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':13 '70':3 '8':15 '80':5 '80s':11 'disco':2 'electronic':18 'greatest':7 'hits':8 'italo':21 'of':9 'or':20 'pau':17 's':4,6 't':16 'the':10 'to':14 'volume':12 'we':19
                                    'search_combo'  '00poprockelectronic':6 '1':18 '70':8 '8':20 '80':10 '80s':16 'disco':7 'electronic':23 'greatest':12 'heart':1A 'hits':13 'italo':26 'of':14 'or':25 'pau':4B,22 's':9,11 'soul':2A 't':3B,21 'the':15 'to':19 'tpau':5B 'volume':17 'we':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           '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-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'new wave', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620569106.7080495  (2021-05-09 16:05:06)
                             'size'  4026494