======================== unified (from filesystem) ========================
                                         'bitrate'  '211.534'
                                        'duration'  '251'
                                          'artist'  'Little Nemo'
                                     'text_people'  ''
                                         'release'  'froide'
                                           'title'  'Old Age (Piano Version)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['coldwave', 'post punk', 'cold wave', 'french', 'new wave']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk-coldwave'
                                             'bpm'  '110.967'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x01\x10\x00\x00'                PRIV(owner='AverageLevel', data=b'\x01\x10\x00\x00')
'PRIV:PeakValue:Ð\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xd0\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'froide'
'TBPM' (BPM (beats per minute))                     '110.967'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk-coldwave'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Old Age (Piano Version)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Little Nemo'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['coldwave', 'post punk', 'cold wave', 'french', 'new wave']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.41 dB'
'TXXX:replaygain_track_peak'                        '0.706100'

========================== row from database ==========================
                                              'id'  1457067
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00newwave-postpunk/1990 - City Lights/03.little nemo - old age (piano version) (2).mp3
                                         'working'  None
                                         'bitrate'  211
                                    'duration_sec'  251
                                           'genre'  electronic-we-new wave or post punk-coldwave
                                        'filesize'  6655483
                                           'mtime'  1620531093
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00newwave postpunk 1990 City Lights 03.little nemo old age (piano version) (2) electronic we new wave or post punk coldwave
                                      'tag_artist'  Little Nemo
                                     'tag_release'  froide
                                       'tag_title'  Old Age (Piano Version)
                                             'bpm'  110.967
                                    'search_title'  'age':2 'old':1 'piano':3,4 'version':5,6
                                   'search_artist'  'little':1 'nemo':2
                                  'search_release'  'froide':1
                                     'search_rest'  '00newwave':4 '00poprockelectronic':1 '03':9 '03little':11 '1990':6 '2':19,20 'age':14 'city':7 'coldwave':28 'disco':3 'electronic':21 'lights':8 'little':10 'nemo':12 'new':23 'old':13 'or':25 'piano':15,16 'post':26 'postpunk':5 'punk':27 'version':17,18 'wave':24 'waves':2 'we':22
                                    'search_combo'  '00newwave':13 '00poprockelectronic':10 '03':18 '03little':20 '1990':15 '2':28,29 'age':2A,23 'city':16 'coldwave':37 'disco':12 'electronic':30 'froide':9C 'lights':17 'little':7B,19 'nemo':8B,21 'new':32 'old':1A,22 'or':34 'piano':3A,4A,24,25 'post':35 'postpunk':14 'punk':36 'version':5A,6A,26,27 'wave':33 'waves':11 'we':31
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['coldwave', 'post punk', 'cold wave', 'french', 'new wave']
                                        'tag_date'  1986
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620531093.1527786  (2021-05-09 05:31:33)
                             'size'  6655483