======================== unified (from filesystem) ========================
                                         'bitrate'  '179.086'
                                        'duration'  '131'
                                          'artist'  'Doodle Duncan'
                                     'text_people'  ''
                                         'release'  'Office Naps Youtube Channel'
                                           'title'  'Doodle Duncan  “Death Row” (192kbit AAC) *'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '136.6'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Office Naps Youtube Channel'
'TBPM' (BPM (beats per minute))                     '136.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Doodle Duncan  “Death Row” (192kbit AAC) *'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Doodle Duncan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rockabilly', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.56 dB'
'TXXX:replaygain_track_peak'                        '0.290407'

========================== row from database ==========================
                                              'id'  1120315
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Office Naps Youtube Channel (Ripped 05 09 16)/Doodle Duncan_ “Death Row” (192kbit_AAC).mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  131
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2936695
                                           'mtime'  1620538857
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Ripped 05 09 16) Duncan_ (192kbit_AAC) prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Doodle Duncan
                                     'tag_release'  Office Naps Youtube Channel
                                       'tag_title'  Doodle Duncan  “Death Row” (192kbit AAC) *
                                             'bpm'  136.6
                                    'search_title'  '192kbit':5,6 'aac':7,8 'death':3 'doodle':1 'duncan':2 'row':4
                                   'search_artist'  'doodle':1 'duncan':2
                                  'search_release'  'channel':4 'naps':2 'office':1 'youtube':3
                                     'search_rest'  '16':3,4 '192kbit':6,8 'aac':7,9 'bossa':16 'duncan':5 'exotica':15 'jazz':12 'jb':11 'lounge':13 'or':14 'prerock':10 'ripped':1,2
                                    'search_combo'  '16':17,18 '192kbit':5A,6A,20,22 'aac':7A,8A,21,23 'bossa':30 'channel':14C 'death':3A 'doodle':1A,9B 'duncan':2A,10B,19 'exotica':29 'jazz':26 'jb':25 'lounge':27 'naps':12C 'office':11C 'or':28 'prerock':24 'ripped':15,16 'row':4A 'youtube':13C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  ['rockabilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620538857.2779248  (2021-05-09 07:40:57)
                             'size'  2936695